Answer:
x = 97
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² = 65² + 72² = 4225 + 5184 = 9409 ( take the square root of both sides )
x = [tex]\sqrt{9409}[/tex] = 97
