What is the circumference of the circle with center at P(-2,3) and passing through Q(10,-2)? Express your answer in terms of pi. How am i supposed to start with this problem????
Using the distance formula....we can find the radius
√ [ (-2 - 10)^2 + ( -2 - 3)^2 ] = √ [(-12)^5 + (-5)^2] = √169 = 13
So....the circumference = 2 pi * r = 2 pi (13) = 26 pi
