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How many faces does a octadecagon?

An octadecagon is an 18 sided polygon.


What is a shape with eighteen sides?

A shape with eighteen sides is called an octadecagon. In geometry, it is a polygon characterized by having 18 straight edges and 18 vertices. The internal angles of a regular octadecagon sum to 2880 degrees, with each angle measuring 160 degrees if the shape is regular.


How many sides does an octadecagon have?

An octadecagon, also called an octakaidecagon, has 18 sides, from the Greek octa-, signifying 8, the connector -kai-, and deca- signifying 10.


How many degrees is in octadecagon?

An octadecagon has 18 sides. To find the sum of the interior angles of a polygon, you can use the formula ((n - 2) \times 180), where (n) is the number of sides. For an octadecagon, the sum of the interior angles is ((18 - 2) \times 180 = 2880) degrees. Each interior angle of a regular octadecagon is (2880 \div 18 = 160) degrees.


What is the name of a 18 sided figure?

The name of a 18 sided figure is an octadecagon or octakaidecagon. As you can see the prefix octa- means 8, and deca- means 10. It has 18 sides and 18 vertices,


How many diagonals does an octadecagon have?

The formula for the number of diagonals (that is, lines joining non-adjacent vertices) belonging to any shape is n(n-3)/2. Therefore, an eighteen-sided polygon has 18 x (18 - 3)/2 = 135 diagonals.


What do you call an 18 sided polygon?

The name of a 18 sided polygon is Octadecagon.


What is the name of 18 polygon?

octadecagon


How many vertices in 2 squares and 2 rectangles?

16 vertices.16 vertices.16 vertices.16 vertices.


How many vertices does a pentacontagon have?

A pentacontagon has 50 vertices (not vertices's!).


How many vertices cube?

8 vertices


How many vertices does a icosidodecahedron have?

it has 30 vertices