Question 1146157
The longest side would be the hypotenuse, so
using the Pythagorean theorem:
{{{ 15^2 + 17^2 = 225 + 289 }}}
{{{ 225 + 289 = 514 }}}
Now find the square of the longest side
{{{ 19^2 = 361 }}}
{{{ a^2 + b^2 = c^2 }}} is not true, so it can't be a right triangle