First, we need to find the radius of the wheel. The radius is half of the diameter, so the radius is 20 in / 2 = 10 in.
Next, we use the formula for the area of a circle: A = πr^2
A = 3.14 * 10^2
A = 3.14 * 100
A = 314 square inches
Therefore, the correct answer is:
c. 314 square inches
The diameter of a bicycle wheel is 20 in. What is the area of the wheel? ( Use 3.14 for pi) A = pi r^2
a. 62.8 square inches
b. 1,256 square inches
c. 314 square inches
d. 15.7 square inches
1 answer