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Concave is a property of [irregular] polygons. A parallelogram cannot be concave.

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Is a rhombus a concave?

A rhombus is an equilateral parallelogram. As such, it is neither concave nor convex.


Can a parallelogram be concave?

No a parallelogram cant be concave because the only parrallelograms there are arent concaveParallelograms...*rectangle *square* rhombus*rhomboidMeaning of concave-polygons that have parts that go into the shape.


Is a rhombus concave or convex?

A rhombus is an equilateral parallelogram. As such, it is neither concave nor convex.


What shape you will always get when you combine a triangle pattern block and a rhombus pattern block?

The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).


What quadrangle has two pairs of equal side but is not a parallelogram?

A kite or, if concave, an arrowhead or chevron.


What is the name of the figure that results when a parrallelogram is removed from a similar but larger parallelogram with which it shares a corner?

The remaining shape could be a [concave] hexagon although in some circumstances it could be a smaller parallelogram.


What other than a square is a four sided shape?

Rectangle, rhombus, parallelogram, trapezium, kite. Also a chevron, which is a concave 4-sided shape.


What do a trapezoid and a triangle make?

It depends entirely on their relative shapes and sizes. They could make a triangle, a parallelogram, a square, or a pentagon or even a concave heptagon.


What shape does a triangle and a parallelogram makes?

Assuming they don't overlap, these are some of the possible shapes: a concave pentagon, a trapezium, a concave seven or eight sided figure (neither of the last two is a polygon but two polygons touching one another).


Is it possible to draw a quadrilateral that is not a trapezoid or a parallelogram?

Yes, it is possible to draw a quadrilateral that is neither a trapezoid nor a parallelogram. One example is a kite, which has two pairs of adjacent sides that are equal in length but does not have parallel sides. Another example is a concave quadrilateral, where at least one of the interior angles is greater than 180 degrees, making it neither a trapezoid nor a parallelogram.


Is a parallelogram a parallelogram?

yes a parallelogram is a parallelogram


Which quadrilaterals have two obtuse angles?

Every parallelogram and most trapezoids have.Oh wait! It seems to me that every quadrilateral, regular or irregular, that'snot a rectangle and not concave, must have at least two obtuse angles.