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Dragon is the answer

Q: What is defined to be a quadrilateral in which both pairs of opposite sides are parallel a regular polygon b concave polygon c parallelagram d octagon?

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concave

No.

A chevron or arrowhead.

A concave quadrilateral. An arrowhead or a delta, for example.

No, a heptagon cannot be parallel but two heptagons can.A heptagon can be concave.

Related questions

No. A trapezoid has two parallel sides. This is not possible in a concave quadrilateral.

A concave quadrilateral would be a non-convex quadrilateral. * * * * * Also known as delta or arrowhead or chevron.

concave

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.

No.

A concave quadrilateral - like an arrowhead or chevron.

a quadrilateral isa polygon with four sides and four vertices. Sometimes the word quadrangle is used. The interior angles add up to 360 degrees. Quadrilaterals are either simple (not self- intersecting) or complex (self-intersecting). Quadrilaterals and polygons in general, are broadly divided into two groups: convex and concave polygon.

No.

yes it will...

A chevron or arrowhead.

concave concave

A concave quadrilateral. An arrowhead or a delta, for example.