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The composite shape shown below is comprised of several known shapes. The triangle has a base of 5 in and height of 8 in. The rectangle has a base of 9 in and height of 8 in and the circular hole has a radius of 2 in. Determine the centroid of the composite shape below. All dimensions are shown in inches. Centroidal x-coordinate [Select] Centroidal y-coordinate [Select] 8 in y k 5 in 5 in 2 in * 4 in 3 in X 5 Question 3 Problem #3 - Stress/Strain Analysis (2.5 points) An 18-foot long steel alloy bar is being compressed along its centroidal axis by 300 kips of force. The bar has a circular cross-section with a radius of 4 in. The steel is ASTM certified A633 Grade A high strength low carbon (HSLC) steel with a yield stress, oy = 42 ksi and modulus of elasticity, E = 30,000 ksi. Determine the axial stre and axial strain in the bar. Axial Stress [Select] Axial Strain [Select] 300 k- 18 ft. 300 k r = 4 in. 2.5 Q