Question

Can someone help me with two questions?

Answer 1

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What are your questions?

Answer 2

Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circle B is 5 inches, the circumference is 15.70 inches, and the area is 19.625 square inches..

Use the formula for area and solve for the value of pi for each circle

Answer 3

That's the first question

Answer 4

I actually just want to know the formula so I can do the rest

Answer 5

Sorry I'm responding so late!
The formula for the area of a circle is A = pi * r^2