A giant wheel in a fair had a diameter 42m.What is a the distance a person travels in one complete revolution?

132m

To find the distance a person travels in one complete revolution of the giant wheel, we need to calculate the circumference of the wheel. The formula to find the circumference of a circle is:

Circumference = π × Diameter

Given that the diameter of the wheel is 42 meters, we can substitute this value into the formula:

Circumference = π × 42

However, since we need an exact answer, we'll use the value of π as 3.14159.

Circumference = 3.14159 × 42
Circumference ≈ 131.94618 meters

Therefore, the distance a person travels in one complete revolution of the giant wheel is approximately 131.94618 meters.

circumference = pi D