Answer:
The answer is (b) 18
Step-by-step explanation:
16 = 4
18 = 4.24264068712
25 = 5
36 = 6
Because both angles are the same, and are in the same spot in the congruent triangles, we can set these angles up to equal each other:

Add x to both sides:

Subtract 4 from both sides:

Divide both sides by 4 to get x by itself:

The value of x is
17.
To get rid of a cube root, we must cube:
(x+8) = -64
Subtract 8:
x = -72
For ex. of this
:) aDD diagram and solve your equation.