The length of a rectangle is 9 cm. The diagonal of the rectangle is 15 cm. What is the breadth (in cm) of the rectangle?
Show answer & explanation
Correct answer: D
Explanation
Given:
Length = 9 cm
Diagonal = 15 cm
According to the formula:
Diagonal² = Length² + Width²
15² = 9² + Width²
225 = 81 + Width²
Width² = 225 − 81 = 144
Width = 12 cm