Interior angles of an n-sided polygon total 180n - 360 degrees. 180n - 360 = 3780 so 180n = 3780 + 360 ie 4140 making n = 4140/180 ie 23 sides
7 sides
A 1260 degree polygon has nine sides. The formula for determining this is (n*180)+2, with n being equal to the degrees in the interior of the polygon.
A polygon having 30 degree exterior angles is a dodecagon having 12 sides.
10
23 sides
Interior angles of an n-sided polygon total 180n - 360 degrees. 180n - 360 = 3780 so 180n = 3780 + 360 ie 4140 making n = 4140/180 ie 23 sides
7 sides
8 sides
11 sides
7 sides, which makes it a heptagon. A polygon is any shape with 3 or more sides.
48
6
57
A 1260 degree polygon has nine sides. The formula for determining this is (n*180)+2, with n being equal to the degrees in the interior of the polygon.
A polygon having 30 degree exterior angles is a dodecagon having 12 sides.
10