Question

The minute hand of a clock is 7 in. Long how far does the point of the hand travel in 60 minutes?

Answer 1

Explanation:

60 minutes is one hour, which is all the way around the outside of the clock one time. This distance is represented by the circumference of a circle, assuming that the clock is in fact circular. The formula for the circumference of a circle in terms of the radius is

`C=2\pi r`

Our radius is 7, so the distance around the outside of that particular clock (and how far the minute hand travels if it goes around the clock one time) is

`C=2\pi (7)` or

C = 14π

If you want the decimal equivalency for that, multiply in pi as 3.1415 and round to whatever place you need. In decimal form, that is

C = 43.9 inches