7th WALE KA CHAHIYE PLEASE IMPORTANT QUESTION HAI
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As we know that, in a right triangle, square of the hypotenuse is equal to the sum of square of the other two sides.
Therefore,
(39)
2
=(36)
2
+(15)
2
1521=1296+225
⇒1521=1521
L.H.S. = R.H.S.
Hence the triangle is right-angled triangle.
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