The area and the length of one of the diagonals of a rhombus is 84 cm2 and 7 cm respectively. Find the length of its other diagonal (in cm).
Let length of one diagonal = $$d$$ cm and length of other diagonal = 7 cm
=> Area of rhombus = $$\frac{1}{2}\times d_1d_2$$
=> $$\frac{1}{2}\times7\times d=84$$
=> $$d=\frac{84\times2}{7}$$
=> $$d=24$$ cm
=> Ans - (B)
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