Answer:
x = 6
Step-by-step explanation:
8^2 + x^2 = 10^2
64 + x^2 = 100
x^2 = 36
x = 6 (-6 can't be a length)
The Answer Is 6
By Pythagoras Theorem
(AC)^2 = (AB)^2 + (BC)^2
(AB)^2 = (AC)^2 - (BC)^2
(AB)^2 = (10)^2 - (8)^2
(AB)^2 = 100 - 64
(AB)^2 = 36
(AB) = 6
AB = X = 6
