The value of x in the diagram is 5.66
Using Trigonometry, we can calculate the height of the triangle thus ;
- sin(30) = opposite/ Hypotenus
Now we have ;
0.5 = height / 8
height = 4
Using the height value, we can calculate, x :
sin(45) = opposite/Hypotenus
sin(45) = 4 / x
x = 4 / sin(45)
x = 5.66