Question:
The diagonals of a rhombus are 7.5 cm and 12 cm. Find its area.
Solution:
Given:
Lengths of the diagonals of a rhombus are $7.5 \mathrm{~cm}$ and $12 \mathrm{~cm}$.
Now, we know : Area $=\frac{1}{2}\left(\mathrm{~d}_{1} \times \mathrm{d}_{2}\right)$
$\therefore$ Area of rhombus $=\frac{1}{2}(7.5 \times 12)=45 \mathrm{~cm}^{2}$
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