Question

Circle A has area of 500 in2. The diameter of circle B is three times the diameter of circle A. Estimate the area of Circle B. NOT 1500!

Answer 1

Answer:

4,500

Step-by-step explanation:

Answer 2

Answer:

Area ≈ 4,500

Step-by-step explanation:

Radius of Circle A

r = √$\frac{A}{\pi}$

r =  √$\frac{500}{\pi}$

r ≈ 12.62

Diameter of Cricle A

d = 2r

d = 2(12.62)

d = 25.24

25.25 x 3 =75.72 --> This is the diameter of Circle B

Radius of Circle B

r = $\frac{d}{2}$

r = $\frac{75.72}{2}$

r = 37.86

Area of Circle B

A =$\pi$$r^{2}$

A = $\pi$(37.86)²

A = 4,503.09