Polygons By Ryan

Polygon The definition of a polygon is a plane figure with at least three sides and angles,typically five or more

Trapezium In this shape you have 4 lines,2 acute angles and 2 obtuse angles. Also the length of the trapezium can be any length but it has to intersect at the four points. The trapezium is not a parallelogram. The two side lines are not parallel but the two other lines are parallel

Rectangle A rectangle is a parallelogram. The rectangle has 2 long sides and 2 short sides. All of the angles are right angles. Also the sides of the rectangle are parallel to the opposite side. There is no irregular rectangle.

Triangle A triangle is not an parallelogram. There are three sides in a triangle. For the angle there it depends on the type of triangle. There also 4 types of triangles(scalene,isosceles, right-angle and equilateral triangle.

Pentagon A pentagon is not a parallelogram. It has five edges and five vertices. The angles in a pentagon is an obtuse angles. The lines in the pentagon are not the same length.

Dodecahedron An dodecahedron isn’t a parallelogram. It has 12 sides and corners. The angles are all obtuse The lines are all the same length.

Octagon An octagon is not a parallelogram. An octagon has 8 sides and 8 corners. All of the angles on a octagon are obtuse. There are 8 lines of symmetry.

Heptagon A heptagon is not a parallelogram. It has 7 edges and corners. The angles are 1 acute and 6 obtuse. There are 7 lines of symmetry.

Square A square is a parallelogram. It has 4 sides and corners. All of angles are right angles. There are 4 lines of symmetry. there can’t be a irregular square.

Hexagon A hexagon is not a parallelogram. It has 6 sides and corners. The hexagon has 6 lines of symmetry. All of the angles are obtuse.