Using a scale of 2cm to 2 units on each axis, draw on a sheet of graph paper two perpendicular axes Ox and Oy for the intervals -10 a. Draw ;
i. ∆ABC with the vertices A(2,4) , B(4,8) and C(6,4)
ii. the image of ∆A'B'C' of ∆ABC under a rotation about the point P(-2,4) where A - A' , B - B' and C - C' through 180°about the point
b. from your graph, find ;
i. the angle of rotation (to the nearest degree)
ii. the coordinates of A' and B'.