Question

The minute hand of a clock is 3 inches long. how far does the tip of the minute hand move in 20 minutes? if necessary, round the answer to two decimal places.

Answer 1

Circumference  = 2$\pi$r  = 2 x 3.142 x 3 = 18.852 inches.
20 mins out of 60 mins = $\frac{1}{3}$
$\frac{1}{3}$ x18.852 = 6.28 inches