8x-5 would be the largest angle because as you approach a larger and larger x value, 8x-5 will skyrocket past the other two. Also when you plug in a low value like 1, 8x-5=3, which is still higher than the other two. The only exception is if you plug in a negative x value which is impossible.
8x-5
How to solve your problem
I think it's 720
Have a GREAT day!
I would try going with h =7/2 if that is wrong just rate me 1
A. 4.898979486
b. 7.416198487
c. 8.544003745
i think at least