How To Use Plane figure In A Sentence

• The area of an irregular plane figure can readily be obtained with this method.
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• In addition to this expressive limitation, Euler's system also suffers other kinds of expressive limitations with respect to non-empty sets, due to topological restrictions on plane figures.
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• In mechanics Archimedes discovered fundamental theorems concerning the centre of gravity of plane figures and solids.
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• He tested this intuition using two-dimensional plane figures - the triangle, square, pentagon, etc. - but this didn't work.
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• If a plane figure is rotated about an axis in its plane then the volume of the solid body formed is equal to the product of the area with the distance travelled by the centre of gravity.
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