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

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 1260 degrees (from above) And there are nine angles So, the measure of the angle of a regular nonagon is 140 degrees.

## How do you find the interior angle?

To find the sum of interior angles of a polygon, multiply the number of triangles in the polygon by 180°. The formula for calculating the sum of interior angles is ( n − 2 ) × 180 ∘ where is the number of sides. All the interior angles in a regular polygon are equal.

160.00°

140 °

144°

## What is an interior angle of a triangle?

60° (for equilateral)

180°

## What is interior angle with example?

Mathwords: Interior Angle . An angle on the interior of a plane figure. Examples : The angles labeled 1, 2, 3, 4, and 5 in the pentagon below are all interior angles . Angles 3, 4, 5, and 6 in the second example below are all interior angles as well (parallel lines cut by a transversal).

## What does interior angle mean?

1 : the inner of the two angles formed where two sides of a polygon come together. 2 : any of the four angles formed in the area between a pair of parallel lines when a third line cuts them.

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3240 degrees

5400 degrees

heptacontagon

108°

1440°

## What do you call a shape with 9 sides?

enneagon

### Releated

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