4. A cube of side 35 mm is kept on HP with base edges equally inclined to VP. It is cut by a plane perpendicular to VP and inclined to HP in such a way that the true shape of the section is a regular hexagon of maximum size. Draw the front view, top view, and true shape of section. Also determine the inclination of the cutting plane with HP. Hint: After keeping the cube in desired position, Draw sectional top view such that the distances 1-6 and 3-4 are half the distance 2-5. 1,3,4,& 6 are mid points of edges (because in a hexagon, distance across corners is twice the length of edge of hexagon) Hint for Q3 Hint for Q4

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A: Locate and draw the INSTANT CENTERS ( Known and unknown )

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Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.