## Elementary Geometry for College Students (6th Edition)

Lets take MN = b =12 h =QR = 6 Area of Parallelogram = bh = 12 * 6 =72 Now lets take PN = QM =9 =b h= QS A = 9h As we know area of parallelogram is same 72 = 9h h = $\frac{72}{9}$= 8