56*(56-3)/2 which is 1484
The name of a 56 sided polygon is Hexapentacontagon.
56-gon
The name of a 51 sided polygon is Pentaconhenagon. The name of a 52 sided polygon is Pentacondigon. The name of a 53 sided polygon is Pentacontrigon. The name of a 54 sided polygon is Pentacontetragon. The name of a 55 sided polygon is Pentaconpentagon. The name of a 56 sided polygon is Pentaconheptagon. The name of a 57 sided polygon is Pentaconhexagon. The name of a 58 sided polygon is Pentaconoctagon. The name of a 59 sided polygon is Pentaconenneagon.
56
Every polygon known has a unique name. These names are created, usually based of the number of sides on the polygon. The pentacontakaihexagon is a polygon with 56 sides.
the pentacontakaihexagon (pen-ta con-ta-ki-hexagon)
The equation for the total interior angles of a polygon is (n-2)x180. In this case, the shape has 56 sides. Thus, to work out the total interior angles of the shape you do: (56-2)x180 =54x180 =9,720. Therefore the total interior angles for a 56 sided shape is 9,720.
== == A 56 sided shape is called a Pentacontakaihexagon.
To construct the name of a polygon over 20 sides, combine the prefix with the connector "kai", indicating tens of sides, and the suffix with another connector, "gon". In this instance, since 50 is represented by "pentaconta", and 6 is represented by "hex", a 56-sided polygon would be called a "pentacontakaihexagon".
S of interior angles of ANY n-sided polygon is (2n -4) right angles, so 2 x 30 - 4 = 56, 56 x 90 = 5040 degrees
Method 1: EXterior angle of any n-sided polygon = 360/n, in this case 12 so INterior angle is 180 - 12 ie 168o Method 2: Interior angle of any n-sided polygon = ((2n - 4 ) x 90)/n which is (56 x 90)/30 ie 168o.