Question

8-6: MathXL for School: Practice & Problem Solving

Due 03
Challenge The radius of Circle A is 8 ft. The radius of Circle B is 2 ft greater than the radius of
Circle A. The radius of Circle C is 4 ft greater than the radius of Circle B. The radius of Circle D is
1 ft less than the radius of Circle C. What is the area of each circle? How many times greater than
the area of Circle A is the area of Circle D?
The area of Circle A is ft2.
(Simplify your answer. Type an exact answer in terms of .)
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Answer 1

The Area of a circle is

`\pi {r}^(2)`

Therefore the Area of Circle A is

`\pi {8}^(2) \\ 201.06`

Area of Circle B is

`\pi {10}^(2) \\ 314.16`

Circle C

`\pi {14}^(2) \\ 615.75`

Circle D

`\pi {13}^(2) \\ 530.93`