Solve for w in the proportion 32/40 = 28/w W= ?

32    =   28  

40          W

cross multiply so that 32W = (40*28)

then                                32W = 1,120

now divide by 32 on both sides

                                      32W = 1,120

                                      32          32      

so now it's only                W = 1,120/32

which simply equals        W = 35

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"