If the circumradius of a right angled triangle is $10 c m,$ then find the length of the hypotenuse.

$10 c m$

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$20 c m$

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$15 c m$

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$30 c m$

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Solution

The correct option is B
$20 c m$

For a right angled triangle, hypotenuse of the triangle is the diameter of the circumcircle.

Given, Radius of the circumcircle $= 10 c m$

So, Diameter $= 2 \times$ radius $= 2 \times 10 = 20 =$ Hypotenuse.

Thus, Hypotenuse $= 20 c m$

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