Answer:
180
Step-by-step explanation:
The perimeter of geometrical shapes is calculated by adding side lengths:
72 + 30 + c = p first we need to find the value of c
The square length of hypotenuse is equal to sum of the square length of the legs:
30^2 + 72^2 = c^2
900 + 5184 = c^2
6084 = c^2 find the root of the both sides
78 = c
78 + 72 + 30 = 180
