
Tim E. answered 01/11/18
Tutor
5.0
(43)
Comm. College & High School Math, Physics - retired Aerospace Engr
S = short piece
L = long piece
L = 2S
S + L = 9
Subst L = 2S
S + 2S = 9
3S = 9
S = 9/3 = 3 feet
L = 2S = 2(3) = 6 feet