Answer:
A. How are GH and GI related?
B. Write an equation to solve for x.
C. Let's solve the equation...
GH : 2x
GI : x + 12
- 2x = x + 12
- 2x - x = 12
- x = 12
D. Now, that we solve for x, let's find the length of GH....
GH = 2x where, x = 12
Therefore, the length of GH is 24.