A clock has a minute hand10 inches long. What is the distance traveled by the tip of the minute hand in 1 day?
2 answers
2 pi *10 inches per hour
one day is 24 hours two rotations on the clock. Each rotation is equal to 2 pi. then it will be 2 times 2 times pi.
apply the formula with radius equal to 10 inches:
S = r * central angle in radians
S = 10 * 4 * pi
S = 125.6 inches
apply the formula with radius equal to 10 inches:
S = r * central angle in radians
S = 10 * 4 * pi
S = 125.6 inches
3 answers