Question 21

The area and the length of one of the diagonals of a rhombus is $$60 cm^2$$ and 8 cm respectively. Find the length of its other diagonal (in cm).

Solution

Let length of one diagonal = $$d$$ cm and length of other diagonal = 8 cm

=> Area of rhombus = $$\frac{1}{2}\times d_1d_2$$

=> $$\frac{1}{2}\times8\times d=60$$

=> $$d=\frac{60\times2}{8}$$

=> $$d=15$$ cm

=> Ans - (D)

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