Answer:
CF=3 m
Step-by-step explanation:
CG is two times longer than GF. With that in mind you get this equation:
x+1=2(x-1); Solve it.
x+1=2x-2;
x+3=2x;
3=x;
Now that you have the value of x, add CG and GF, and get CF;
3+1+3-1=6
