Thread: Clock and arcs

Given:the arc between 2 consecutive numbers on a clock. Each minute, the hour hand of the clock moves through 1/60 of such an arc. How many degrees does the hour hand move in 20 minutes?

Why is the solution 10 degrees?

Originally Posted by donnagirl

Given:the arc between 2 consecutive numbers on a clock. Each minute, the hour hand of the clock moves through 1/60 of such an arc. How many degrees does the hour hand move in 20 minutes?

Why is the solution 10 degrees?

1 arc is equal to 1/12th the distance around the clock.

so

Lets start with what we know.