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 4 types of polygon
Image caption,
These shapes are all different, but they are all polygons.

Polygon party

Only 2D shapes with straight sides are invited to the polygon party.

Quadrilaterals

Quadrilaterals have 4 sides and their internal angles add up to 360掳.

Square, rectangle, rhombus, parallelogram, kite and trapezium are all quadrilaterals.

Triangles

Triangles have 3 sides. Their internal angles add up to 180掳.

The types of triangle are isosceles, equilateral, scalene, and right-angled.

Irregular polygons

Irregular polygons have sides of different lengths and angles.

Regular polygons

There are names for other shapes with sides of the same length.

These include pentagon which has 5 sides, hexagon has 6, heptagon has 7, and octagon has 8 sides.

 4 types of polygon
Image caption,
These shapes are all different, but they are all polygons.

More on 2d shapes

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