No.
Concave, because you can connect the corners from the outside.
concave
4-sided polygons include the square, rectangle, and rhombus (all parallelograms), and the trapezoid.*A fifth type is a concave or convex quadrilateral with no equal or parallel sides.
A rectilinear figure is a polygon such that all its sides meet at right angles. The only convex shapes are a rectangle (or square), but it can also be a concave shape with some interior angles of 270 degrees.
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.
Rectangle
rectangle and 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.
A square. Or an irregular, concave shape with with 5 or more sides.
A bigger square, a rectangle, an irregular concave hexagon, an irregular concave octagon are all possibilities.
Rectangle, rhombus, parallelogram, trapezium, kite. Also a chevron, which is a concave 4-sided shape.
The opposite of convex is concave. Concave shapes have an inward curve, while convex shapes have an outward curve.
Concave, because you can connect the corners from the outside.
Concave is a property of [irregular] polygons. A parallelogram cannot be concave.
no concave mirror is in shape of concave mirror
plano concave
concave=in convex=out