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4th Edition

Richard N. Aufmann + 3 others

Publisher: Cengage Learning

ISBN: 9781305965584

Chapter 7.4, Problem 14ES

Textbook Problem

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Triangles *ABC* and *DEF* are similar triangles. Use this fact to solve each exercise. Round to the nearest tenth.

Find the area of triangle *DEF*.

To determine

To find the area of triangle DEF.

**Given information:**

Given, triangles ABC and DEF are similar triangles.

And the given triangles are:

**Calculation:**

When two triangles ABC and DEF are similar. Let CG and FH be the heights

Using the above rule:

Consider,

Plugging the values,

Mathematical Excursions (MindTap Course List)

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Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - Solve. Round to the nearest hundredth if...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - As our scientific and technical knowledge has...Ch. 7.1 - The speed of light is approximately 3108 m/s. 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Ships...Ch. 7.4 - Which one of the following figures is not...Ch. 7.4 - Which one of the following figures is not...Ch. 7.4 - In parts a and b, the letters of the alphabet are...Ch. 7.4 - In parts a and b, the numerals I through 9 are...Ch. 7.4 - It has been said that a topologist doesnt know the...Ch. 7.4 - Find the ratio of the lengths of corresponding...Ch. 7.4 - Find the ratio of the lengths of corresponding...Ch. 7.4 - Find the ratio of the lengths of corresponding...Ch. 7.4 - Find the ratio of the lengths of corresponding...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - Triangles ABC and DEF are similar triangles. Use...Ch. 7.4 - The given triangles are similar triangles. Use...Ch. 7.4 - The given triangles are similar triangles. Use...Ch. 7.4 - The given triangles are similar triangles. Use...Ch. 7.4 - The given triangles are similar triangles. Use...Ch. 7.4 - The given triangles are similar triangles. Use...Ch. 7.4 - In the figure below, BDAE, BD measures 5 cm. AE...Ch. 7.4 - In the figure below, ACDE, BD measures 8 m, AD...Ch. 7.4 - In the figure below DEAC, DE measures 6 in., AC...Ch. 7.4 - In the figure below, AEBD, AB = 3 ft, ED = 4 ft,...Ch. 7.4 - In the figure below, MP and NQ intersect at O, NO...Ch. 7.4 - In the figure below, MP and NQ intersect at O, NO...Ch. 7.4 - In the figure below, MQ and NP intersect at O. 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For calculations...Ch. 7.5 - Find the volume of the figure. For calculations...Ch. 7.5 - Find the volume of the figure. For calculations...Ch. 7.5 - Find the volume of the figure. For calculations...Ch. 7.5 - Find the volume of the figure. For calculations...Ch. 7.5 - Find the volume of the figure. For calculations...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Find the surface area of the figure. For...Ch. 7.5 - Solve. Volume A rectangular solid has a length of...Ch. 7.5 - Solve. Volume Find the volume of a rectangular...Ch. 7.5 - Solve. Volume Find the volume of a cube whose side...Ch. 7.5 - Solve. Volume The length of a side of a cube is 7...Ch. 7.5 - Solve. Volume The diameter of a sphere is 6 ft....Ch. 7.5 - Solve. Volume Find the volume of a sphere that has...Ch. 7.5 - Solve. Volume The diameter of the base of a...Ch. 7.5 - Solve. Volume The height of a cylinder is 7.2 m....Ch. 7.5 - Solve. Volume The radius of the base of a cone is...Ch. 7.5 - Solve. Volume The height of a cone is 15 cm. The...Ch. 7.5 - Solve. Volume The length of a side of the base of...Ch. 7.5 - Solve. Volume The height of a regular square...Ch. 7.5 - Solve. The length of a side of a cube is equal to...Ch. 7.5 - Solve. A sphere and a cylinder have the same...Ch. 7.5 - Solve. The Statue of Liberty The index finger of...Ch. 7.5 - Solve. Fish Hatchery A rectangular tank at a fish...Ch. 7.5 - Solve. The Panama Canal When the lock is full, the...Ch. 7.5 - Solve. Surface Area The width of a rectangular...Ch. 7.5 - Solve. Surface Area The side of a cube measures...Ch. 7.5 - Solve. Surface Area Find the surface area of a...Ch. 7.5 - Solve. Surface Area Find the exact surface area of...Ch. 7.5 - Solve. Surface Area The radius of a sphere is 2...Ch. 7.5 - Solve. Surface Area The radius of the base of a...Ch. 7.5 - Solve. Surface Area The diameter of the base of a...Ch. 7.5 - Solve. Surface Area The slant height of a cone is...Ch. 7.5 - Solve. Surface Area The diameter of the base of a...Ch. 7.5 - Solve. Surface Area The length of a side of the...Ch. 7.5 - Solve. Surface Area The slant height of a regular...Ch. 7.5 - Solve. Appliances The volume of a freezer that is...Ch. 7.5 - Solve. Aquariums The length of a rectangular solid...Ch. 7.5 - Solve. Paint A can of paint will cover 300 ft2 of...Ch. 7.5 - Solve. Ballooning A hot air balloon is in the...Ch. 7.5 - Solve. Surface Area The length of a side of the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the volume of the figure. Round to the...Ch. 7.5 - Find the surface area of the figure. Round to the...Ch. 7.5 - Find the surface area of the figure. Round to the...Ch. 7.5 - Find the surface area of the figure. Round to the...Ch. 7.5 - Find the surface area of the figure. Round to the...Ch. 7.5 - Oil Tanks A truck is carrying an oil tank. The...Ch. 7.5 - Swimming Pools How many liters of water are needed...Ch. 7.5 - Metallurgy A piece of sheet metal is cut and...Ch. 7.5 - Gold A solid sphere of gold alloy with a radius of...Ch. 7.5 - Swimming Pools A swimming pool is built in the...Ch. 7.5 - a. Draw a two-dimensional figure that can be cut...Ch. 7.5 - A sphere fits inside a cylinder as shown in the...Ch. 7.5 - Determine whether the statement is always true,...Ch. 7.5 - a. 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Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Use a calculator. Round to the nearest tenth of a...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - Draw a picture and label it. Then set up an...Ch. 7.6 - As we noted in this section, angles can also be...Ch. 7.6 - As we noted in this section, angles can also be...Ch. 7.6 - As we noted in this section, angles can also be...Ch. 7.6 - As we noted in this section, angles can also be...Ch. 7.6 - Recall that the circumference of a circle is given...Ch. 7.6 - Recall that the circumference of a circle is given...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert degree measure to radian measure. Find an...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.6 - Convert radian measure to degree measure. For...Ch. 7.7 - Place two points A and B on a paper cup so that A...Ch. 7.7 - The only geodesics of a sphere are great circles....Ch. 7.7 - Write a sentence that explains how you know that...Ch. 7.7 - Excursion Exercises 4 to 6 require a world globe...Ch. 7.7 - Excursion Exercises 4 to 6 require a world globe...Ch. 7.7 - Excursion Exercises 4 to 6 require a world globe...Ch. 7.7 - The yellow surface at the left above is called a...Ch. 7.7 - State the parallel postulate for each of the...Ch. 7.7 - Name the mathematician who is called the...Ch. 7.7 - Name the mathematician who was the first to...Ch. 7.7 - What is the maximum number of right angles a...Ch. 7.7 - What name did Lobachevsky give to the geometry...Ch. 7.7 - Explain why great circles in Riemannian geometry...Ch. 7.7 - What is a geodesic?Ch. 7.7 - In which geometry can two distinct lines be...Ch. 7.7 - What model was used in this text to illustrate...Ch. 7.7 - In which geometry do all perpendiculars to a given...Ch. 7.7 - Find the exact area of a spherical triangle with...Ch. 7.7 - Find the area of a spherical triangle with three...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - City Geometry Find the Euclidean distance between...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - A Distance Conversion Formula The following...Ch. 7.7 - Explain why there is no formula that can be used...Ch. 7.7 - a. If dE(P,Q)=dE(R,S), must dC(P,Q)=dC(R,S)?...Ch. 7.7 - Plot the points in the city circle with center...Ch. 7.7 - Plot the points in the city circle with center...Ch. 7.7 - Plot the points in the city circle with center (0,...Ch. 7.7 - Plot the points in the city circle with center (0,...Ch. 7.7 - How many points are on the city circle with center...Ch. 7.7 - Which of the following city circles has the most...Ch. 7.7 - Apartment Hunting in a City Use the following...Ch. 7.7 - Apartment Hunting in a City Use the following...Ch. 7.7 - A Finite Geometry Consider a finite geometry with...Ch. 7.7 - A Finite Geometry Consider a finite geometry with...Ch. 7.8 - Use a strip of paper and the folding procedure...Ch. 7.8 - Use the left-right rule to draw stage 2 of the...Ch. 7.8 - Use the left-right rule to determine the direction...Ch. 7.8 - Use the left-right rule to determine the direction...Ch. 7.8 - Use the left-right rule to determine the direction...Ch. 7.8 - Use an iterative process to draw stage 2 and stage...Ch. 7.8 - Use an iterative process to draw stage 2 and stage...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Use an iterative process to draw stage 2 of the...Ch. 7.8 - Draw stage 3 and stage 4 of the fractal defined by...Ch. 7.8 - Draw stage 3 and stage 4 of the fractal defined by...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compute, if possible, the similarity dimension of...Ch. 7.8 - Compare Similarity Dimensions Rank, from largest...Ch. 7.8 - The Peano Curve The Peano curve is defined by the...Ch. 7.8 - Explain why the similarity dimension formula...Ch. 7.8 - Stage 0 and stage 1 of LĂ©vys curve (see Exercise...Ch. 7 - For Exercises 1 to 5, convert one measurement to...Ch. 7 - For Exercises 1 to 5, convert one measurement to...Ch. 7 - For Exercises 1 to 5, convert one measurement to...Ch. 7 - For Exercises 1 to 5, convert one measurement to...Ch. 7 - For Exercises 1 to 5, convert one measurement to...Ch. 7 - The price of a beverage is $3.56 per liter. What...Ch. 7 - Given that in ma=74 and in mb=52, find the...Ch. 7 - Triangles ABC and DEF are similar. Find the...Ch. 7 - Find the volume of the geometric solid.Ch. 7 - Find the measure of x.Ch. 7 - Find the surface area of the rectangular solid.Ch. 7 - The length of a diameter of the base of a cylinder...Ch. 7 - Given that BC=11 cm and that AB is three times the...Ch. 7 - Given that mx=150, find the measures of w and y.Ch. 7 - Find the area of a parallelogram that has a base...Ch. 7 - Find the volume of the square pyramid.Ch. 7 - Find the circumference of a circle that has a...Ch. 7 - Given that l1l2, find the measures of angles a and...Ch. 7 - Find the supplement of a 32Â° angle.Ch. 7 - Find the volume of a rectangular solid with a...Ch. 7 - Two angles of a triangle measure 37Â° and 48Â°....Ch. 7 - The height of a triangle is 7 cm. The area of the...Ch. 7 - Find the volume of a sphere that has a diameter of...Ch. 7 - Framing The perimeter of a square picture frame is...Ch. 7 - Paint A can of paint will cover 200 ft2 of...Ch. 7 - Parks and Recreation The length of a rectangular...Ch. 7 - Patios What is the area of a square patio that...Ch. 7 - Landscaping A walkway 2 m wide surrounds a...Ch. 7 - Determine whether the two triangles are congruent....Ch. 7 - Find the unknown side of the triangle. Round to...Ch. 7 - In Exercises 31 and 32, find the values of sin ,...Ch. 7 - In Exercises 31 and 32, find the values of sin ,...Ch. 7 - Use a calculator. Round to the nearest tenth of a...Ch. 7 - Use a calculator. Round to the nearest tenth of a...Ch. 7 - Use a calculator. Round to the nearest tenth of a...Ch. 7 - Use a calculator. Round to the nearest tenth of a...Ch. 7 - Surveying Find the distance across the marsh in...Ch. 7 - Angle of Depression The distance from a plane to a...Ch. 7 - Angle of Elevation The angle of elevation from a...Ch. 7 - What is another name for Riemannian geometry?Ch. 7 - What is another name for Lobachevskian geometry?Ch. 7 - Name a geometry in which the sum of the measures...Ch. 7 - Name a geometry in which there are no parallel...Ch. 7 - Determine the exact area of the spherical...Ch. 7 - Determine the exact area of the spherical...Ch. 7 - Euclidean and City Distances Find the Euclidean...Ch. 7 - Euclidean and City Distances Find the Euclidean...Ch. 7 - Euclidean and City Distances Find the Euclidean...Ch. 7 - Euclidean and City Distances Find the Euclidean...Ch. 7 - Consider the points P( 1, 1), Q(4, 5), and R(â€“4,...Ch. 7 - Draw stage 0, stage 1, and stage 2 of the Koch...Ch. 7 - Draw stage 2 of the fractal with the following...Ch. 7 - For the fractal defined in Exercise 52, determine...Ch. 7 - Compute the similarity dimension of a strictly...Ch. 7 - Find the volume of a cylinder with a height of 6 m...Ch. 7 - Find the perimeter of a rectangle that has a...Ch. 7 - Find the complement of a 32Â° angle.Ch. 7 - Find the area of a circle that has a diameter of 2...Ch. 7 - In the figure below, lines l1 and l2 are parallel....Ch. 7 - In the figure below, lines l1 and l2 are parallel....Ch. 7 - Convert: 1.2 m = ________ cm.Ch. 7 - Find the volume of the figure. Give the exact...Ch. 7 - Triangles ABC and DEF arc similar. Find side BC.Ch. 7 - A right triangle has a 40Â° angle. Find the...Ch. 7 - Find the measure of x.Ch. 7 - Find the area of the parallelogram shown below.Ch. 7 - Surveying Find the width of the canal shown in the...Ch. 7 - Pizza How much more area is in a pizza with radius...Ch. 7 - Determine whether the two triangles are congruent....Ch. 7 - For the right triangle shown below, determine the...Ch. 7 - Find the values of sin , cos , and tan for the...Ch. 7 - Angle of Elevation From a point 27 ft from the...Ch. 7 - Trees Find the cross-sectional area of a redwood...Ch. 7 - Toolbox A toolbox is 14 in. long, 9 in. wide, and...Ch. 7 - Find the speed, in meters per second, of a car...Ch. 7 - State the Euclidean parallel postulate.Ch. 7 - What is a great circle, and what formula is used...Ch. 7 - Find the area of a spherical triangle with a...Ch. 7 - City Geometry Find the Euclidean distance and the...Ch. 7 - City Geometry How many points are on the city...Ch. 7 - Draw stage 2 of the fractal with the given...Ch. 7 - Draw stage 2 of the fractal with the given...Ch. 7 - Compute the replacement ratio, scale ratio, and...Ch. 7 - Compute the replacement ratio, scale ratio, and...

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