Answer:
x=17
Step-by-step explanation:
Using pythagoras theorem that state that the square of the hypotenuse is equal to the sum of the square of the opposite side and the square of the adjacent of the triangle
/hypo/^2=/opp/^2+/adj/^2
/hypo/=x
/opp/=8
/adj/=15
Applying to the formula
x^2=8^2+15^2
x^2=64+225
x^2=289
x=17
