Question 1 a) Figures 1 and 2 show two columns of round and square shape, respectively. Determine the radius of the round column so that the round and square column have the same cross-sectional area...

Extracted text: Question 1 a) Figures 1 and 2 show two columns of round and square shape, respectively. Determine the radius of the round column so that the round and square column have the same cross-sectional area and compute the critical load of each strut. Use E=200 GPa. b) Determine the parameters for each question below, assume E = 200 GPa. i) Critical load for the square column ii) Radius of the round column for which both columns have the same critical load i) Express the cross-sectional area of the square column as a percentage of the cross-sectional area of the round column. P A 1'm 1m 25 mm D B Figure 1 Figure 2