Determine the smallest allowable cross-sectional area in square millimeters of member CE of the truss shown below. The working stresses are 138 MPa in tension and 83 MPa in compression. Hint: Solve for internal force at CE and determine whether it is a tension or (indicative of the conventional sign for normal force or axial force). Then, use the given applicable working stresses to solve for the minimum area required. compression A 470 B 1189 C) 883.3 758.5 2.4 m 3.6 m 2.4 m 2.4 m 2.4 m 157 KN

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