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Question

From given figure what is the value of OC using Pythagoras theorem

458791.PNG

A
10
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B
12
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C
13
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D
15
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Solution

The correct option is B 15
In a right angled triangle, a2+b2=h2, where a and b are the lengths of the legs and c is the length of the hypotenuse. This is called Pythagoras Theorem.

OD=8,OC=x,CD= hypotenuse side =17

Therefore, 82+OC2=172

28964= OC2

OC2 =225

Taking square root on both sides, we get

OC=15.

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