10. In Fig. 9.27, ABCD and AEFD are two parallelograms. Prove that ar (PEA) = ar (QFD) [Hint: Join PD]. 10. In Fig. 9.27 ABCD and AEFD are two parallelograms. Prove that ar (PEA) = ar (QFD) [Hint: Join PD]. July 1, 2021 Category: Chapter 9 - Areas of Parallelogram and Triangles , Maths , [...]