What Is The Sum Of The Interior Angles Of A Dodecagon. Sum of interior angles of a decagon n10 n-2straight angles 8180 1440 deg. 180 3-sided polygon is a triangle and the sum of the interior angles.
Sum of interior angles n-2 x 180 Sum of interior angles 10 x 180 1800. Each triangle has an interior angle sum of 180. The sum of the exterior angles of any polygon is 360.
Lets find the sum of the interior angles as well as one interior angle.
You can use this generic formula to find the sum of the interior angles for an n-sided polygon regular or irregular. And when it is regular all angles the same then each angle is 540 5 108 Exercise. Since the sum of the interior angles of a triangle is 180 the sum of the interior angles of the nonagon is 9 180 1260. Sum of interior angles n-2 x 180 Sum of interior angles 10 x 180 1800 Subsequently question is what is each interior angle of a regular decagon.
