The area of a rhombus is 240 $c m^{2}$ and one of the diagonal is 16 cm.Find another diagonal.

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Solution

Area of rhombus=240 $c m^{2}$

Length of one diagonal $(d_{1})$ =16 cm

$∴ S e c o n d d i a g o n a l (d_{2}) = \frac{A r e a \times 2}{d_{1}} = \frac{240 \times 2}{16} = 30 c m$

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