A flying disc has a circumference of 81.64 centimeters. What is the area of the flying disc? (Use 3.14 for .)
A.
530.66 square centimeters
B.
163.28 square centimeters
C.
40.82 square centimeters
D.
1,061.32 square centimeters
To find the area of the flying disc, we first need to find the radius of the disc.
Circumference = 2πr
81.64 = 2πr
r = 81.64 / 2π
r ≈ 13 cm
Now that we have the radius, we can find the area of the disc:
Area = πr^2
Area = 3.14 * 13^2
Area = 3.14 * 169
Area ≈ 530.66 square centimeters
So, the correct answer is:
A. 530.66 square centimeters