The diameter of a bicycle wheel is 20 in. What is the area of the wheel? (Use 3.14 for π)
62.8 square inches
1,256 square inches
314 square inches
15.7 square inches
The area of the wheel is determined by the formula for the area of a circle:
Area = πr^2
Given that the diameter is 20 in, the radius (r) is half of the diameter, so r = 10 in.
Plugging in the values:
Area = 3.14 * (10)^2
Area = 3.14 * 100
Area = 314 square inches
Therefore, the area of the wheel is 314 square inches.