Answer
Not a right triangle.
Work Step by Step
The given sides are
$a=2,b=2$ and $c=3$
The given side lengths are sides of a right triangle if satisfies the Pythagorean Theorem.
Use Pythagorean theorem is $c^2=a^2+b^2$ where $c$ is the length of the hypotenuse.
Substitute the given values into the formula:.
$(3)^2=(2)^2+(2)^2$
$9=4+4$
$9\ne8$
Hence, the three given lengths do not form a right triangle.