Answer
not a right triangle
Work Step by Step
The triangle is right if its sidelengths satisfy the Pythagorean Theorem.formula $c^2=a^2+b^2$ where $c$ is the length of the hypotenuse (longeset side).
The given sides are
$a=4,b=5$ and $c=6$
Substitute all the values into the formula above to obtain:
$(6)^2=(4)^2+(5)^2$
$36=16+25$
$36=41$
The two sides are not equal.
Hence, the triangle is not a right triangle.
