Answer:
x = [tex]\sqrt{2}[/tex]
Step-by-step explanation:
Using Pythagoras' identity on the sides of the right triangle, then
x² + ([tex]\sqrt{14}[/tex])² = 4²
x² + 14 = 16 ( subtract 14 from both sides )
x² = 2 ( take the square root of both sides )
x = [tex]\sqrt{2}[/tex]
