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Earn +20 ptsQ: Why must concave quadrilaterals be irregular?
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Continue Learning about Geometry
Which type of quadrilateral is not considered a parallelogram?
A trapezoid (UK trapezium) is a quadrilateral has only one pair of parallel sides. Otherwise, there are many irregular quadrilaterals that have no parallel sides, such as a kite or dart shape, and these include both concave and convex quadrilaterals.
Is concave a parallelogram?
Concave is a property of [irregular] polygons. A parallelogram cannot be concave.
Do irregular quadrilaterals have no right angles?
no
What are all the quadrilaterals?
square, rectangle, trapezoid, rhombus, parallelogram, kite, and irregular quadrilaterals
What polygons have 4lines of symmetry?
Quadrilaterals- Squares, Rectangles, Rhomboids, Parallelograms, kites, chevrons, trapezoids, and irregular quadrilaterals.
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