No. A triangle is a polygon and that has three sides.
A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons.
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Quadrilaterals are polygons with four sides. Triangles are polygons with three sides.
no, they can be any shape
Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is. Yes because all rectangles are closed polygons with four straight sides - and that is what a quadrilateral is.
A square and a rhombus both have four equal sides.
no polygon simply means many sides