4. A compound section consists of 2 rectangular pieces, the left one is 40mm*130mm, the right one is 120mm*50mm. The axe

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4 A Compound Section Consists Of 2 Rectangular Pieces The Left One Is 40mm 130mm The Right One Is 120mm 50mm The Axe 1 (32.12 KiB) Viewed 34 times

4. A compound section consists of 2 rectangular pieces, the left one is 40mm*130mm, the right one is 120mm*50mm. The axes XX and YY pass through the centroid of the section. centroid ---- Fig. 04 (a) Find (x, y), the coordinates (mm) of the centroid of the section. (9 marks) (b) Find the moment of inertia Ixx of the section (mm). (8 marks) (c) Find the moment of inertia lyy of the section (mm). (8 marks)