ABCDE and AWXYZ are two mathematically similar pentagons.
AE = 4 cm WX = 6 cm DE = 5 cm YZ = 8 cm
Calculate the length of BC.
Since these are similar....then
DE / YZ = BC /WX
5 / 8 = BC / 6 multiply both sides by 6
30 / 8 = BC = 15 / 4 = 3 .75