The perimeter of ABE is 20. Calculate the measure of A.F.
Given:
AB = 5
ED = 3
BC = 8
FE = 2.5
AD = 7

i wanna say that it is 2.5 but its not that then it may be 7.5 because the triangle abe is all together 20 and 12.5 from 20 is 7.5