Question

The lengths of the diagonals of a rhombus are 36 cm and 22.5 cm. Its area is

(a) 8.10 cm² (b) 405 cm² (c) 202.5 cm² (d) 1620 cm²

Answer 1

Here, d₁ = 36 cm and d2 = 22.5 cm.
Area of parallelogram = $\frac{\text{1}}{\text{2}}\left(d_1\times d_2\right)=\frac{1}{2}\left(36\times 22.5\right)=405{\mathrm{cm}}^2$
Hence, the correct option is (b).