Using Pythagorean theorem check whether 15, 36, and 39 form a right triangle

By the Pythagorean theorem, , where c is the greater measure.

Since 39 is the greater measure, c = 39.

                           (Write the Pythagorean theorem)

      (Substitute )

          (Evaluate powers)

                        (Add: )

Since , segments with measures 15, 36 and 39 form a right triangle.

Because of three measures are whole numbers, they form a Pythagorean triple.

The sides with the measures 15, 36 and 39 form a right triangle and also they form a Pythagorean triple.