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# 2427.3. Polygon angle sum, convex or concaved quadrangle, polygon diagonale.

The summ of convexed quad's angles is bigger than the summ of triangle's angles.

#### Next task: 2431. Polygon angle sum, convex or concaved quadrangle, polygon diagonale.

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Geometry
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Subtheme
Polygon angle sum, convex or concaved quadrangle, polygon diagonale.

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