360 divided by 80 is 4.5 and so you have the exterior. The interior is 180 - 4.5 which is 175.5 and so that is the interior.
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.
360
It has 18 sides and interior angles,which of them are 160 degrees each and 2880 degrees total and is also called an 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.
An octadecagon is an 18 sided polygon.
It has 18
it has to be at least 60 degrees
90 degrees
720 interior degrees 360 exterior degrees
720 interior degrees and 360 exterior degrees
The 3 interior angles of any triangle add up to 180 degrees
Sum of the interior angles is (n-2)*180 = 4*180 = 720 degrees. So each interior angle is 720/6 = 120 degrees.