Answer:
A quadrilateral has 4 sides, 4 angles, and 4 vertices. A quadrilateral can be regular or irregular. The sum of all the interior angles of a quadrilateral is 360°.
Nos. 1, 2, 4, 8, and 9 are quadrillaterals
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Answer:
A quadrilateral has 4 sides, 4 angles, and 4 vertices. A quadrilateral can be regular or irregular. The sum of all the interior angles of a quadrilateral is 360°.
Nos. 1, 2, 4, 8, and 9 are quadrillaterals