Question

Please help !

∆ABC is similar to ∆DEF. The measure of AB = 6, the measure of DE = 18, the measure of BC = 12, and the measure of DF = 15.

Find the measures of AC and EF.

AC =


_______________

EF =

Answer 1

`(ab)/(de) = (bc)/(ef) = (ac)/(df)`=k

`(6)/(18) = (12)/(ef)`

`ef = 36`

from this

`(12)/(36) = (ac)/(15)`

`ac = 5`

`(6)/(18) = (12)/(36) = (5)/(15) = (1)/(3)`

I hope it helps