The length of a rectangle is 5 cm. The diagonal of the rectangle is 13 cm. What is the area (in square cm) of the rectangle?
Show answer & explanation
Correct answer: B
Explanation
Given:
Length = 5 cm
Diagonal = 13 cm
According to the formula:
Diagonal² = Length² + Width²
Area = Length × Width
13² = 5² + Width²
169 = 25 + Width²
Width² = 169 − 25 = 144
Width = 12 cm
Area = 5 × 12 = 60 sq. cm