Question

A unicycle tire can travel 7.85 ft. in on revolution. What is the area of the unicycle tire? Round answer to the nearest tenth.

Answer 1

Answer:

The answer would be 0.06

Step-by-step explanation:

Answer 2

Answer:

4.9ft^2

Step-by-step explanation:

7.85 ft is the circumference of the tire (circle), so $\pi$d = 7.85.

7.85/$\pi$ = 2.5, the diameter is 2.5, so the radius is 1.25.

$\pi$r^2 is the formula for the area, so $\pi$*1.25^2 = 1.5625$\pi$, which is 4.906, which rounded to the tenth is 4.9.