Question
Solve the following examples.
Do sides $7\ cm , 24\ cm, 25\ cm$ form a right angled triangle ? Give reason.
 

Answer

Yes,
Because
$7^2 + 24^2 = 25^2 [i.e. 49 + 576 = 625]$
As, sides satisfy the Pythagoras theorem, i.e.
$\text ({Hypotenuse})^2 = \text ({base})^2 + \text ({Perpendicular})^2$
They do form a right-angled triangle.

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