Answer:
sdsd enwss
hhhh
12/(x+1) = 26.4/(3x-1)
36x -12 = 26.4x + 12
9.6x = 38.4
x = 4
4
Step-by-step explanation:
The side length would be 4, but I'm a bit confused on what the "Recall the Formula" portion is about. I'm sorry if this doesn't help
b. side angle side. hope this helps