One side of rhombus is 13 cm and one of its diagonals is 24 cm. What is the area of the rhombus?

Answer: Option B

AO = OC = 12
AB = 13
BO = 5
Area of rhombus 4 × Area of ΔAOB
= 4 × $$\frac{1}{2}$$ × 12 × 5
= 120 cm²