Angle in standavd position10pi/7 = Solution An angle is in standard position if its vertex is located at the origin and one ray is on the positive x-axis The reference angle is measured from the terminal side of the original angle \"to\" the x-axis 10pi/7 = pi +3pi/7 ----IIIrd quardarnt Standard position angles = 3pi/7, -( 2pi- 3pi/7) = 3pi/7 , -19pi/7.