A cone with a sector angle of 45° is cut out of a circle of radius r cm. Find the base radius of the cone.
A point P moves so that its equidistant from point L and M. If LM is16cm, find the distance of P from LM when P is 10cm from L
Find the distance between the point Q (4,3) and the point common to the lines 2x - y = 4 and x + y = 2
The angle of elevation of a building from a measuring instrument placed on the ground is 30o. If the building is 40m high, how far is the instrument from the foot of the building?