We have the required coordinates as follows: For rectangle OABC are: O(0, 0), A(2, 0), B(2, 3), C(0, 3) For parallelogram PQRS: P(4, 3), Q(6, 1), R(6, 5), S(4, 7) For triangle KLM : K(10, 5), L(7, 7), M (10, 8).