Pythagorean Theorem
a² + b² = c² {a and b are the legs and c is the hypotenuse}
7² + 24² = c² {substituted into Pythagorean Theorem}
49 + 576 = c² {squared 7 and 24}
625 = c² {combined like terms}
c = 25 {evaluated square root of 625 to be 25}
Perimeter of a triangle = all sides added together