Respuesta :

Answer:

x=6

Step-by-step explanation:

to find an angle of a right angled triangle we use the pythagorean property

which is

hypotenuse^2 = base^2 + altitude^2

10^2=x^2+8^2

100= x^2 + 64

x^2 +64 = 100

x^2=100-64

x^2=36

x= √36

x=6