If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to
A.	9.0 m
B.	10.0 m
C.	11.0 m
D.	12.0 m
Answer:A
If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to
A.	9.0 m B.	10.0 m C.	11.0 m D.	12.0 m