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The internal angle of a three-sided polygon is 360° and that of quadrangle is 180°.

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in Mathematics – Class 8 by (91.0k points)
The internal angle of a three-sided polygon is 360° and that of quadrangle is 180°.

(a) True

(b) False

This question was addressed to me in a job interview.

I'm obligated to ask this question of Properties of Polygons-2 in chapter Quadrilaterals of Mathematics – Class 8

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Best answer
The correct option is (b) False

The best explanation: The sum of internal angle of a three-sided polygon is 180° and that of a quadrangle is 360°; because a quadrangle can be split into two triangles and we know that the sum of interior angles of the triangle is 180. So, two times 180 is 360.

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