A bicycle training wheel has a radius of 3 inches. The bicycle wheel has a radius of 10 inches. Approximately how much smaller, in square inches, is the areaof the training wheel than the area of the regular wheel?Use 3.14 for pi

Answer 1

The area of the training wheel can be calculated using the formula for the area of a circle: A = πr^2.

For the training wheel:
A_training = π * (3)^2
A_training ≈ 3.14 * 9
A_training ≈ 28.26 square inches

For the regular wheel:
A_regular = π * (10)^2
A_regular ≈ 3.14 * 100
A_regular ≈ 314 square inches

The difference in area between the regular wheel and the training wheel is:
Difference = A_regular - A_training
Difference = 314 - 28.26
Difference ≈ 285.74 square inches

Therefore, the training wheel is approximately 285.74 square inches smaller than the regular wheel.