A triangle has sides of lengths 4, 3, and 5. Is it a right triangle?

Sep 6, 2017

Yes

Explanation:

As per Pythagoras's theorem, for a right-angle triangle, the sum of the squares of two sides (sides adjacent to the right angle) is equal to the square of the third side (hypotenuse--the side opposite to the right angle)

Here

${3}^{2} + {4}^{2} = {5}^{2} = 25$