Question

(05.04 MC)
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..

Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points)

Part B: Use the formula for area and solve for the value of pi for each circle. (4 points)

Part C: What observation can you make about the value of pi for circles A and B?

Answer 1

I NEED HELP ASAP

Answer 2

Usually you should have your formulas someplace, from then you can substitute

Circumference is 2•pi• r

Area is pi•r^2

r = radius