We are given two triangles ABC and DEF... it is given that they are similar and we know that when 2 triangles are similar the ratio of their corresponding sides are equal... Here, the corresponding sides are AB/DE and BC/EF but maryam has taken the wrong ratio.. Maryam has taken AB/EF and BC/DE...
Lets solve it:
AB/DE = BC/EF
- AB = x
- DE = 18
- BC = 16
- EF = 12
x/18 = 16/12
x/18 = 4/3
3x = 72
x = 24m