Question

(JUSTIFY)The diameter of a wheel is 15 inches. How far would your hand move in one full turn of the wheel if you do not let go of the wheel? Round the answer to the nearest inch. (Use 3.14 for pi) Describe how to tell weather your answer is reasonable.

Answer 1

So,

The circumference of a circle is $2 \pi r, or \ \pi d, where \ d \ is \ the \ diameter.$

Substitute 15 for d
$15(3.14)$

47.1
47

Your hand would move 47 inches.