In the parallelogram PQRS, PE is perpendicular to QR. Find the area of the parallelogram.

Correct Answer: Option D

Explanation

By Pythagoras, PE² = 13² – 5²
= 169 – 144 = 144
h = PE = 144 = 12cm,
Area of 11gm = b x h
QR = b =(5 + 7)cm = 12cm
area = 12 x 12
= 144cm²