A flying disc has a circumference of 81.64 centimeters. What is the area of the flying disc? (Use 3.14 for .)
To find the area of a flying disc given the circumference, we can use the formula for the circumference of a circle:
C = 2πr
Where C is the circumference, π is pi (approximately 3.14), and r is the radius of the circle.
In this case, the circumference of the flying disc is 81.64 centimeters. We can plug this value into the formula:
81.64 = 2 * 3.14 * r
Rearranging the formula to solve for the radius, we get:
r = 81.64 / (2 * 3.14)
r = 81.64 / 6.28
r ≈ 13 centimeters
Now that we have the radius of the flying disc, we can calculate the area of the disc using the formula for the area of a circle:
A = πr^2
A = 3.14 * (13)^2
A = 3.14 * 169
A ≈ 531.86 square centimeters
Therefore, the area of the flying disc is approximately 531.86 square centimeters.