Answer:
x ≈ 13.9
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
x² + 8² = 16²
x² + 64 = 256 ( subtract 64 from both sides )
x² = 192 ( take square root of both sides )
x = [tex]\sqrt{192}[/tex] ≈ 13.9 ( to the nearest tenth )
