## What is the measure of an interior and exterior angle of a regular octagon?

This means that each interior angle of the regular octagon is equal to 135 degrees. Each exterior angle is the supplementary angle to the interior angle at the vertex of the polygon , so in this case each exterior angle is equal to 45 degrees. (180 – 135 = 45). Remember that supplementary angles add up to 180 degrees.

## What is the measure of a interior angle?

In order to find the value of the interior angle of a regular polygon , the equation is (n−2)180∘n where n is the number of sides of the regular polygon .

## How do you find the measure of an interior angle?

A regular polygon is a flat shape whose sides are all equal and whose angles are all equal. The formula for finding the sum of the measure of the interior angles is (n – 2) * 180. To find the measure of one interior angle , we take that formula and divide by the number of sides n: (n – 2) * 180 / n.

1080°

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

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 1440 degrees (from above) And there are ten angles So, the measure of the angle of a regular decagon is 144 degrees.

## What is the sum of the interior angle of a triangle?

180°

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

Icosagon

Regular icosagon
Symmetry group Dihedral (D20), order 2×20
Internal angle (degrees) 162°
Dual polygon Self
Properties Convex, cyclic, equilateral, isogonal, isotoxal

108°

## What is the measure of one interior angle of a regular hexagon?

And there are six angles So, the measure of the interior angle of a regular hexagon is 120 degrees .

## How do you find the measure of an angle?

The best way to measure an angle is to use a protractor. To do this, you’ll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle’s measurement to the nearest degree.

120°

900°

1260°

## What is the sum of the interior angles of a dodecagon?

1800°

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