Question

Help please? Medal! (:



Find the measure of a central angle that intercepts an arc of 81.5 cm in a circle whose radius is 16.3 cm.

A)5 rad
B)16 rad
C)65 rad

A flywheel makes 240 revolutions per minute. What is the angular velocity expressed in radians?

A)120π rad/min
B)240π rad/min
C)480π rad/min

A circular gear turns 60° per hour. How many radians does it turn in a 24-hour day?



A)4π rad/day
B)6π rad/day
C)8π rad/day

Answer 1

What do you think it is?