The vertices of quadrilateral OPQR are O(0,0), P(2,0), Q(4,2), R(0,3). The vertices of its image under a rotation are O'(1,-1), P'(1,-3), Q'(3,-5) and R'(4,-1).
(a)(i) On the grid draw OPQR and its image O'P'Q'R'.
(ii) by construction determine the centre and angle of rotation.
(b) On the same grid as (a) (i) above, draw O''P''Q''R'', the image of O'P'Q'R' under a reflection in the line y = x
(c)From the quadrilaterals drawn, state the pairs that are:
(i) Directly congruent; (
(ii) Oppositely congruent