The length of a rectangle is 24 cm. The diagonal of the rectangle is 30 cm. What is the area (in square cm) of the rectangle?
Show answer & explanation
Correct answer: C
Explanation
Given:
Length = 24 cm
Diagonal = 30 cm
According to the formula:
Diagonal² = Length² + Width²
30² = 24² + Width²
900 = 576 + Width²
Width² = 900 − 576 = 324
Width = 18 cm
Area = Length × Width = 24 × 18 = 432 sq. cm