A 18-ft ladder is leaning against a building. If the base of the ladder is 7 ft from the base of the building, what is the angle of elevation of the ladder?(Round your answer to one decimal place.)How high does the ladder reach on the building? (Round your answer to the nearest whole number.)ftNeed Help?Read ItWatch It

Solve the following to find the angle of elevation and height of the building

Answered: A 18-ft ladder is leaning against a…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter9: Real Numbers And Right Triangles

Section9.8: The Sine And Cosine Ratios

Problem 25E

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Similar questions

The Learning Tower of Pisa The bell tower of the cathedral in Pisa, Italy, leans 5.6 from the vertical. A tourist stands 105 m from its base, with the tower leaning directly toward her. She measures the angle of elevation to the top of the tower to be 29.2. Find the length of the tower to the nearest meter.
Distance Suppose Figure 22 is an exaggerated diagram of a plane flying above earth. If the plane is 4.55 miles above earth and the radius of earth is 3.960 miles, how far is it from the plane to the horizon? What is the measure of angle A? Figure 22
Diameter of the Moon From the earth, the moon subtends an angle of approximately 0.5. If the distance to the moon is approximately 240,000 miles, find an approximation for the diameter of the moon accurate to the nearest hundred miles. (See Example 4 and the discussion that precedes it.)
Circumference of the Earth The Greek mathematician Eratosthenes ca.276-195 B.C. measured the circumference of the earth from the following observations. He noticed that on a certain day the sun shone directly down a deep well in Syene modern Aswan. At the same time in Alexandria, 500 miles north on the same meridian, the rays of the sun shone at an angle of 7.2 to the zenith. Use this information and the figure to find the radius and circumference of the earth.
Distance to the Sun When the moon is exactly half full, the earth, moon, and sun form a right angle see the figure. At that time the angle formed by the sun, earth, and moon is measured to be 89.85. If the distance from the earth to the moon is 240,000 mi, estimate the distance from the earth to the sun.
Radio Antenna A short-wave radio antenna is supported by two guy wires, 165 ft and 180 ft long. Each wire is attached to the top of the antenna and anchored to the ground at two anchor points on opposite sides of the antenna. The shorter wire makes an angle of 67 with the ground. How far apart are the anchor points?

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