Question
The sides of certain triangles are given below. Determine which of them are right triangles.
$a = 7cm, b = 24cm$ and $c = 25cm$

Answer

We have,
$a = 7cm, b = 24cm $ and $c = 25cm$
$ \therefore a^2+b^2=(7)^2+(24)^2=49+576=625$
$ c^2=(25)^2=625$
$\text { thus, } a^2+b^2=c^2$
Hence, it is a right-triangle.

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