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In case of an area, the figure is assumed to be a lamina of negligible thickness so that its centre of gravity will be practically on the surface. As the area has no weight this point is also called the ______(a) Moment of inertia of areas(b) Centre of gravity(c) Centroid(d) Neutral axis |
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Answer» Correct choice is (c) Centroid To explain: In mathematics and physic, the centroid or geometric center of a plane figure is the arithmetic mean (“average”) position of all the points in the shape. The definition extends to any object in n-dimensional space: its centroid is the mean position of all the points in all of the coordinate directions. Informally, it is the point at which a cut out of the shape could be perfectly balanced on the tip of a pin. |
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