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Question

In the rhombus ABCD, AC and BD are the diagonals. If the diagonals are 16 cm and 12 cm. Find the length of each of its sides.

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

The correct option is D 10 cm

We know that, diagonals in a rhombus bisect each other perpendicularly.
Let O is the intersecting point of diagonals AC and BD.
OA=AC2=162=8cm

OB=BD2=122=6cm
Now, in AOB,AOB=90o
(AB)2=(OA)2+(OB)2 [ By Pythagoras theorem ]
(AB)2=(8)2+(6)2
(AB)2=64+36
(AB)2=100
AB=10cm
We know that, all sides of rhombus are equal.
The length of each side of rhombus is 10cm

1246774_299996_ans_8c309fe110ab4a7ab09484a84d8cbe23.png

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