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4. A poster is 25 cm taller than it is wide. It is mounted on a piece of card- board so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm², what are the dimensions of the poster? wido It is bordered on all sides hy a

4. A poster is 25 cm taller than it is wide. It is mounted on a piece of card- board so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm², what are the dimensions of the poster? wido It is bordered on all sides hy a

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.CR: Review Exercises
Problem 26CR: The Turners want to install outdoor carpet around their rectangular pool. The dimensions for the...
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question 4 please. with a sketch of the dimensions of the poster

504- raymarph- Pces shown on this ye 2) Oral Exercises Solve. 2. A rectangle is 10 m longer than it is wide. If its length and width are both decreased by 2 m, its area is decreased by 48 m2. Find its original dimensions. increased by 3 cm, its area is increased original rectangle. x+ 10 42 3. 3. Problems -2 m Solve. the A 1. A rectangle is three times as long as it is wide. If its length and width are both decreased by 2 cm, its area is decreased by 36 cm2. Find its original dimensions. Make a sketch as in Oral Exercise 2. 2. A rectangle is twice as long as it is wide. If both its dimensions are in- creased by 4 m, its area is increased by 88 m2. Make a sketch as in Oral Exercise 1. Find the dimensions of the original rectangle. 3. A rectangular swimming pool is three times as long as it is wide and is surrounded by a deck 2.5 m wide. Find the dimensions of the pool if the area of the deck is 265 m2. 4. A poster is 25 cm taller than it is wide. It is mounted on a piece of card- board so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm², what are the dimensions of the poster? +4 5. A brick patio is twice as long as it is wide. It is bordered on all sides by a garden 1.5 m wide. Find the dimensions of the patio if the area of the gar- den is 54 m?. 6. A house has two rooms of equal area. One room is square and the other room is a rectangle 4 ft narrower and 5 ft longer than the square one. Find the area of each room. B 7. A small city park consists of a rectangular lawn surrounded on all sides by a 330 m2 border of flowers 2.5 m wide. Find the area of the lawn if the entire park is 5 m longer than it is wide. Polynomials 173
Transcribed Image Text:504- raymarph- Pces shown on this ye 2) Oral Exercises Solve. 2. A rectangle is 10 m longer than it is wide. If its length and width are both decreased by 2 m, its area is decreased by 48 m2. Find its original dimensions. increased by 3 cm, its area is increased original rectangle. x+ 10 42 3. 3. Problems -2 m Solve. the A 1. A rectangle is three times as long as it is wide. If its length and width are both decreased by 2 cm, its area is decreased by 36 cm2. Find its original dimensions. Make a sketch as in Oral Exercise 2. 2. A rectangle is twice as long as it is wide. If both its dimensions are in- creased by 4 m, its area is increased by 88 m2. Make a sketch as in Oral Exercise 1. Find the dimensions of the original rectangle. 3. A rectangular swimming pool is three times as long as it is wide and is surrounded by a deck 2.5 m wide. Find the dimensions of the pool if the area of the deck is 265 m2. 4. A poster is 25 cm taller than it is wide. It is mounted on a piece of card- board so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm², what are the dimensions of the poster? +4 5. A brick patio is twice as long as it is wide. It is bordered on all sides by a garden 1.5 m wide. Find the dimensions of the patio if the area of the gar- den is 54 m?. 6. A house has two rooms of equal area. One room is square and the other room is a rectangle 4 ft narrower and 5 ft longer than the square one. Find the area of each room. B 7. A small city park consists of a rectangular lawn surrounded on all sides by a 330 m2 border of flowers 2.5 m wide. Find the area of the lawn if the entire park is 5 m longer than it is wide. Polynomials 173
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