This diagram shows a regular dodecagon (12 sides). a) Work out the size of of one interior angle.

b) Work out the size of one exterior angle.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10