Question

Given the two similar triangles, how do I find the missing length?
If a=4, b=5, and b'=7.5 find a'

Answer 1

1. Find the scale factor ab has been increased by to get a’b’
7.5/5=1.5
The scale factor is 1.5
2. Find a’
4x1.5=6
Therefore 6 is a’
Hope this helps