Question

A triangle has sides with lengths of 5 meters, 12 meters, and 13 meters. Is it a right triangle?

Answer 1

yes :

use the following formula :

a^2 +b^2 = c^2

now apply it to the problem :

5^2+12^2=13^2

do the exponent :

25 + 144 =169

now add

169 =169

if they are equal , then it is a right triangle .