Question 315478
No choices are given. 
If the legs were lined up end to end the length would be 
Lmax={{{3x+5x+4=8x+4}}}
If they were lined up next to each other,
Lmin={{{5x+4-3x=2x+4}}}
You can never reach these limits but,
(Lmin < L < Lmax)
(2x+4 < L < 8x+4)