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

Answer:

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

$\pi {13}^{2} \\ 530.93$