A triangle and a square on the same sheet of paper have.
Polygons are 2D plane figures. All polygons with 7 sides would be classified as heptagons.
Regular polygons with 5, 7 or more sides.
Infinitely many. Polygons with 6 or more sides can have 3 pairs of parallel lines. Polygons with 7 or more sides can have a set of three parallel lines.
Quadrilaterals are polygons with four sides. Triangles are polygons with three sides.
Hexagons are 2-D polygons with six sides.
You cannot tessellate convex polygons with 7 or more sides.
A parallelogram and selected polygons with 6 or more sides.
Quadrilaterals. Parallelograms have two pairs of parallel sides.
Any polygon with 4 or more sides can have 2 parallel sides.
because polygons are closed shapes with no rounded parts so a 2 sided polygon is not real!
trapezoid
A polygon is a shape constructed by straight lines. Examples: triangle 3 sides, quadrilateral 4 sides, pentagon 5 sides, hexagon 6 sides, heptagon 7 sides, octagon 8 sides ...... etc Polygons can be regular (equal sides) or irregular (unequal sides) Polygons have interior angles that are measured at their vertex. To find the sum of a polygon's interior angles: (number of sides-2)*180 All polygons have a total sum 360 degrees exterior angles.