B is a diamond, and i believe all the angles would be the same, get a protractor helps a lot.
now if i'm wrong ignore me
54 is 90% of: (N = number)
90% = 90/100 = .9
54=.9 x N
54/.9 = N
60 = N
The area is 32 but not sure
You just divide 72 to 32
8x4=32
72/32=2.25
Answer is 2.25$ per slice
