The value of h is 11.3.
Solution:
Given data:
The triangle is a right triangle.
θ = 45° and opposite side of θ = 8
The value of sin 45° = 
Using trigonometric formula,



Do cross multiplication.

h = 11.3
The value of h is 11.3.
256 is the answer. I know this because 128+128 equals 256.