## How do you find the interior angle of a dodecagon?

The interior angles of a dodecagon are a bit harder. You can use this generic formula to find the sum of the interior angles for an n-sided polygon (regular or irregular): Sum of interior angles = (n-2) x 180° Sum of interior angles = 10 x 180° = 1800°

160.00°

3240 degrees

147.273°

144°

## What is the measure of an interior angle of a regular pentagon?

The General Rule

Shape Sides Sum of Interior Angles
Triangle 3 180°
Pentagon 5 540°
Hexagon 6 720°

## What is the formula for interior angles?

An interior angle is located within the boundary of a polygon. The sum of all of the interior angles can be found using the formula S = (n – 2)*180. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.

heptacontagon

5400 degrees

icosikaihenagon

dihectogon

pentacosagon

900 degrees

## What are the 20 kinds of polygons?

Terms in this set (18) Three. Trigon or Triangle. Four. Tetragon or Quadrilateral. Five. Pentagon. Six. Hexagon. Seven. Heptagon. Eight. Octagon. Nine. Nonagon or Enneagon. Ten. Decagon.

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## How many sides does a polygon have with an interior angle of 1620?

So, the sum of the interior angles of an 11-gon is 1620 degrees. All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1620 degrees (from above) And there are eleven angles

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