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Question

The area of the rhombus is 48 cm2, If the diagonals of rhombus are in ratio 3:2, then find the length of each diagonal.

A
8 cm, 6 cm
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B
9 cm, 6 cm
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C
10 cm, 8 cm
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D
12 cm, 8 cm
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Solution

The correct option is D 12 cm, 8 cm
Let the length of the diagonals be 3y and 2y.
Area of rhombus = 12×(Product of diagonals)
Area of rhombus = 12×(3y×2y)
48 = 3y2
y2 = 483 = 16
y = 16 = 4
Hence, the length of diagonals are 3y, 2y i.e 12 cm, 8 cm.

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