The area of a rhombus is 240 cm², and one of its diagonals is 20 cm. Find the length of the other diagonal.
Show answer & explanation
Correct answer: C
Explanation
Area = 240 cm², One diagonal = 20 cm
According to the formula:
Area = (1/2) × d₁ × d₂
240 = (1/2) × 20 × d₂
240 = 10 × d₂
d₂ = 240 / 10 = 24 cm