Given:
In a triangle,

To find:
Whether the given segments are the sides of a right triangle or not.
Solution:
In a right triangle the square of largest side is equal to the sum of squares of two smaller side.
(Pythagoras theorem)
Three sides are
. Here, 25 is the largest side.

Now, the sum of squares of two smaller sides is:



Since the sum of squares of two smaller side is equal to the square of largest side, therefore the given segments are the sides of a right triangle.