The minute hand of a certain clock is 4 in long. Starting from the moment when the hand is pointing straight up, how fast is the area of the sector that is swept out by the hand increasing at any instant during the next revolution of the hand?

Question

tkhunny · Answer

Area swept is what?  180º of sweeping sweeps half the circle.  Construct a formula that tells this story.  Area must be a function of the central angle.

anonymous · Answer

thats what i dont know how to do