We can find out by using the pythagorean theorem
a^2 + b^2 = c^2.....where a and b are the legs and c is the hypotenuse, which is the longest side.
a^2 + b^2 = c^2
3.5^2 + 4.5^2 = 5.5^2
12.25 + 20.25 = 30.25
32.50 = 30.25 (incorrect)......therefore, it is NOT a right triangle
