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In this Maths article, learn how to use a formula to find out the internal angles within a polygon.
Polygon Definition. A polygon is a flat, two-dimensional (2D) shape with straight sides which are all joined up. A shape with straight sides which are not fully closed is not a polygon. A polygon can have any number of sides.
A polygon is a plane shape with straight sides. Is it a Polygon? Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).
Find out what's true and what isn’t from students who've been through it! There are lots of different types of polygon. Find out about quadrilaterals, triangles, polygons and circles in this KS2...
The sum of exterior angles of a polygon is 360°. The formula for calculating the size of an exterior angle is: exterior angle of a polygon = 360 ÷ number of sides. Learn about and revise angles...
In geometry, a polygon (/ ˈ p ɒ l ɪ ɡ ɒ n /) is a plane figure made up of line segments connected to form a closed polygonal chain. The segments of a closed polygonal chain are called its edges or sides. The points where two edges meet are the polygon's vertices or corners. An n-gon is a polygon with n sides; for example, a triangle is a 3 ...
