In figure 5, what is the length of segment GA? with solution.

Answer:
GA= 10
Step-by-step explanation:
RT x RS = RA x RG
7 x 4 = (2+x) 2
28 = 4 + 2x
28 - 4 = 2x
24/2 = 2x/2
12 = x
GA = RA - RG
GA = 12 - 2
GA = 10