Question
The area of a rhombus is 170 cm2. The length
of one of its diagonals is 20 cm. The length of the other diagonal is:Solution
Using formula, Area of rhombus = 1/2 x product of diagonals Let the d1, d2 be the diagonals of a rhombus.  ⇒ 170 = 1/2 x 20 x d2 ⇒ d2 = 170/10 = 17 cm Â
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