The minute hand of a watch is 10 cm long. How far does it tip move in 20 minutes?
Express the angular measurement of the angle of a regular decagon in (a) degrees (b) radians.
The difference between two acute angles of a right angled triangle is Express the angles in (a) degrees (b) radians.
A wheel makes 45 revolutions per minute. Through how many radians does it run in 1 second?