It has 18
The name of a 18 sided polygon is Octadecagon.
octadecagon or octakaidecagon
An Octadecagon
An eighteen sided shape is called a Octadecagon, or a Octakaidecagon.
It has 18
An octadecagon, also called an octakaidecagon, has 18 sides, from the Greek octa-, signifying 8, the connector -kai-, and deca- signifying 10.
The name of a 18 sided polygon is Octadecagon.
octadecagon
octadecagon
360
Octadecagon
octadecagon or octakaidecagon
An Octadecagon
An octadecagon
octadecagon or octakaidecagon
( n x 180 ) - 360wheren is the number of sides.In other words,take the number of sides or your polygon and multiply that by 180.then, subtract 360 from that result.that is your answer.An octadecagon has 18 sides.( 18 x 180 ) - 360 = 2880The sum of the interior angles of an octadecagon is 2880 degrees.