Learn more about how angles in an 𝒏-sided polygon add to 180° × (𝒏 – 2) with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

We need five angles, each of which can combine with copies of itself and the others to sum to 360. But we also need five sides that will fit together with those angles. Further complicating matters, a ...

To see a four-sided polygon — a rectangle — look higher in the western sky close to the overhead zenith. The four brightest stars you see form a diamond, a diagonally orientated rectangle.

A polygon close polygon A polygon is a 2-dimensional closed shape with straight sides, eg triangle, hexagon, etc. is a 2D close two-dimensional (2D) Having only two dimensions, usually length (or ...

The solution to the four-sided polygon had also been found, by Brahmagupta, an Indian mathematician, around the middle of the 7th century. Advertisement. But a general theory was elusive.

To find the sum of the interior angles of a polygon, multiply the number of triangles in the polygon by 180°. BBC Homepage. ... The shape has 5 sides and can be split into 3 triangles.

It’s possible to work out the angles of polygons with more than 4 sides by cutting them up into triangles. This is a regular hexagon. It has 6 sides and it can be divided into 4 triangles, like ...