Given -
To Find -
GH =?
Step-by-Step Explanation -
We can see from the figure
GH = 5x - 10
GI = 3x
Also, we can see from the diagram
GI = GH
So,
3x = 5x - 10
5x - 3x = 10
2x = 10
x = 10/2
x = 5
Now, putting x = 5 in GH
We get:
GH = 5(5) - 10
GH = 25 - 10
GH = 15
Final Answer -
Option(c) 15