Question

Will medal!
Circle A has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. The diameter of circle B is 6 inches, the circumference is 18.84 inches, and the area is 28.26 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? (2 points)

Answer 1

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Answer 2

really -_-

Answer 3

Part A)
circumference = PI * diameter

PI = circumference / diameter
PI = 21.98 / 7
PI = 3.14

PI = 18.84/6
PI = 3.14

Answer 4

i just put that in my essay?

Answer 5

Part B)
Area = PI * diameter^2 / 4
PI = 4 * Area / diam^2
PI = 4 * 38.465 / 7*7
PI = 153.86 / 49
PI = 3.14

Circle B
PI = 4 * Area / diam^2
PI = 4 * 28.26 / 6 * 6
PI = 113.04 / 36
PI = 3.14

Answer 6

Part C)
Conclusion - PI = 3.14 and is the same for both circles and is the same for EVERY circle.

Answer 7

I just put all that in my essay?

Answer 8

I don't know how much detail your instructor wants so put whatever you think is needed.