Question

A triangle ABC has been enlarged by scale factor m = 2.5 to the triangle A' B' C'. Calculate : the length of AB, if A' B' = 6 cm.

Answer 1

Given that ABC has been enlarged by scale factor m = 2.5 to the triangle A' B' C' 

A'B' = 6 cm

So, AB (2.5) = A'B'

`=>` AB (2.5) = 6

`=>` AB = 2.4 cm