Question

AABC~ AQRS
Find the missing side length, m.

Answer 1

Ratio remains same

`\\ \rm\bullet\rightarrowtail (AB)/(AC)=(RQ)/(QS)`

`\\ \rm\bullet\rightarrowtail (3)/(1)=(m)/(5)`

`\\ \rm\bullet\rightarrowtail m=15`