Question

What is convex and concave polygons? Explain it briefly.

Answer 1

convex polygon:
polygons that are convex have no portions of their diagonals in their exterior . 

concave polygon :
In a concave polygon, at least one diagonal passes outside the figure.

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Answer 2

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Convex Polygon- In a convex polygon, all the diagonals lie completely inside the polygon and each of its interior angles is less than 180°.

Concave polygon- In a concave polygon, one or more diagonals lie outside the polygon and one or more of its interior angles is greater than 180°.

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