Question

The area of a rhombus is 90 square inches. If the longer diagonal measures 18 inches, what is the length of the shorter diagonal?

A. 10 inches

B. 12 inches

C. 16 inches

D. 17 inches

Answer 1

10 Inches

A = p q / 2

p = diagonal 1
q = diagonal 2

2A / q = p

Solve for p
180/18 = 10