The area, A of 2 semi-circles separated by a fixed length can be expressed as a quadratic equation provided the perimeter of the shape, P is known: A = -xr² + Pr (1) Consider an application of this equation where a pool is to be constructed as shown below with the following dimensions: 1 Figure 1: Top view of a pool design. a) Derive an equation for the perimeter of the pool, P in terms of 1 and r. b) Express the area of the pool, A in terms of 1 and r.
The area, A of 2 semi-circles separated by a fixed length can be expressed as a quadratic equation provided the perimeter of the shape, P is known: A = -xr² + Pr (1) Consider an application of this equation where a pool is to be constructed as shown below with the following dimensions: 1 Figure 1: Top view of a pool design. a) Derive an equation for the perimeter of the pool, P in terms of 1 and r. b) Express the area of the pool, A in terms of 1 and r.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 15CYU
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Question
![The area, A of 2 semi-circles separated by a fixed length can be expressed
as a quadratic equation provided the perimeter of the shape, P is known:
A = -лr² + Pr
(1)
Consider an application of this equation where a pool is to be constructed
as shown below with the following dimensions:
Figure 1: Top view of a pool design.
a) Derive an equation for the perimeter of the pool, P in terms of 1
and r.
b) Express the area of the pool, A in terms of 1 and r.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F55521067-0384-497f-95f8-f51a06d5dbdf%2F3564bdc0-1dc7-4622-85e5-6af5f53394cf%2F0eetr4i_processed.png&w=3840&q=75)
Transcribed Image Text:The area, A of 2 semi-circles separated by a fixed length can be expressed
as a quadratic equation provided the perimeter of the shape, P is known:
A = -лr² + Pr
(1)
Consider an application of this equation where a pool is to be constructed
as shown below with the following dimensions:
Figure 1: Top view of a pool design.
a) Derive an equation for the perimeter of the pool, P in terms of 1
and r.
b) Express the area of the pool, A in terms of 1 and r.
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Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
![e) If the pool shape is restricted such that the dimension, 1 is 1.5 m,
what will be the radius, r if the pool is to maintain its perimeter,
P of 8 m?](https://content.bartleby.com/qna-images/question/55521067-0384-497f-95f8-f51a06d5dbdf/a03654c4-42c3-4455-a6cf-7c789329acd6/189ndv_thumbnail.png)
Transcribed Image Text:e) If the pool shape is restricted such that the dimension, 1 is 1.5 m,
what will be the radius, r if the pool is to maintain its perimeter,
P of 8 m?
Solution
Follow-up Question
![d) Find the radius, r and the dimension, I that maximises the pool
area for a pool perimeter, P of 8 m.](https://content.bartleby.com/qna-images/question/55521067-0384-497f-95f8-f51a06d5dbdf/5de81715-c57d-461f-b949-bd03ae54d76a/cy908wr_thumbnail.png)
Transcribed Image Text:d) Find the radius, r and the dimension, I that maximises the pool
area for a pool perimeter, P of 8 m.
Solution
Follow-up Question
![c) Hence, or otherwise show that A = -² + Pr.](https://content.bartleby.com/qna-images/question/55521067-0384-497f-95f8-f51a06d5dbdf/4ede1074-42e0-4478-9784-ebf5e8a3c836/1n86w7d_thumbnail.png)
Transcribed Image Text:c) Hence, or otherwise show that A = -² + Pr.
Solution
Follow-up Question
![b) Express the area of the pool, A in terms of 1 and r.](https://content.bartleby.com/qna-images/question/55521067-0384-497f-95f8-f51a06d5dbdf/9049d649-fc78-4b75-98c9-54838c8914b2/5kqsuqi_thumbnail.png)
Transcribed Image Text:b) Express the area of the pool, A in terms of 1 and r.
Solution
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