Question

The diagonals of a rhombus are $7.5cmand12cm$. Find its area.

• A. $45c{m}^2$
• B. $45m^2$
• C. $4.5c{m}^2$
• D. None of these

Answer 1

The correct option is A $45c{m}^2$

Area of a rhombus $=\frac{1}{2}\times \left(productofdiagonals\right)$
$=\left(\begin{array}{c}\frac{1}{2}\times 7.5\times 12\end{array}\right)c{m}^2=45c{m}^2$