12 sided regular polygon.
cut the angle of a decagon in half the cut angle for equal sides is 30 degrees on each end take 180 degrees divide bt # of sides and this will give you the cut angle for any euqal sided shape
A 30 sided shape is called a Triacontagon.
Providing it's a regular 12 sided shape it's 360/12 = 30 degrees
A triacontagon is a thirty-sided polygon.
12 sided regular polygon.
cut the angle of a decagon in half the cut angle for equal sides is 30 degrees on each end take 180 degrees divide bt # of sides and this will give you the cut angle for any euqal sided shape
An interior angle of a 30-sided polygon can have any value between 0 and 360 degrees : with the possible exception of 180 degrees - which would make it a 29 sided polygon!
a 30 sided shape
A tridekahedron is a 3D 30 sided shape.
A 30 sided shape is called a Triacontagon.
A 30 sided polygon is called a Triacontagon.
Providing it's a regular 12 sided shape it's 360/12 = 30 degrees
The total interior angle of a 12 sided polygon is = (12 - 2) 180 degrees = 1800 degrees. The internal angle at each vertex of an regular dodecagon is equal to = = 150 degrees. While the exterior angle at a single vertex is = = 30 degrees. The total exterior angle of a 12 sided polygon is 360 degrees.
A triacontagon is a thirty-sided polygon.
30 * 180 - 360 = 5040
Sum of exterior angles = 360 degrees. So each exterior angle = 360/30 = 12 degrees and so, each interior angle = 180-12 = 168 degrees. Edit: Not quite so. For a 30 sided regular shape, the sum of the external angles is (2n+4)x90 = 5760 degrees so each external angle is 5760/30 = 192 degrees. The sum of the internal angles is (2n-4)x90 = 5040 degrees so each internal angle is 5040/30 = 168 degrees. The two angles should add up to 360. They do.