A = (a+b)/2
2*A = 2*(a+b)/2 ... multiply both sides by 2
2A = a+b
2A-a = a+b-a ... subtract 'a' from both sides to isolate b
2A-a = b
b = 2A-a
Answer: b = 2A-a
71 is the correct answer.
355 divided by 5 = 71
0.941176471 to the nearest hundredth is 0.94
I believe this is pythag
15^2 x 11^2 = 27225
(square root) of 27225 = 165
165ft
