The diagonal of a rectangle is $10$ cm and its breadth is $6$ cm. What is its length?

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Solution

The correct option is C $8$ cm
Length = $\sqrt{{(D i a g o n a l)}^{2} - {(B r e a d t h)}^{2}} = \sqrt{{(10)}^{2} - {(6)}^{2}} = \sqrt{100 - 36} = \sqrt{64} = 8 c m$

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