**What is the measure of an exterior angle of a dodecagon**

It can be proven geometrically since each exterior angle describes a rotation by some angle and a sum of all exterior angles describes a rotation by full angle of #360^o#. So, if all exterior angles are equal, like in a regular polygon, each one equals to #360^o/N# .... Another way to calculate the exterior angle of a triangle is to subtract the angle of the vertex of interest from 180°. The sum of the lengths of any two sides of a triangle is …

**Exterior Angle Worksheet Five Pack Math Worksheets Land**

Another way to calculate the exterior angle of a triangle is to subtract the angle of the vertex of interest from 180°. The sum of the lengths of any two sides of a triangle is …...4 - Exterior angles of polygons The exterior angle of a polygon is an angle between any side of a shape and a line extended from the next side. When you add the exterior angle of a polygon and its corresponding and exterior angle on a straight line, it amounts to 180°.

**If you know the exterior angle how do you find the number**

Exterior angle of a dodecagon (12-sided regular polygon) is supplementary to its interior angle. Sum of all interior angles of #N# -sided regular polygon equals to #(N-2)*180^o# . how to fix hooded eyes naturally Hi there, The formula for the size of an exterior angle for a regular polygon is 360/n where n is the number of sides in the polygon. The formula for the size of each interior angle for a regular polygon is (n-2)(180)/n where n is the number of sides in the polygon.. How to find chiral centers in cyclic compounds

## How To Find The Size Of An Exterior Angle

### How to find the measure of an exterior angle. YouTube

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## How To Find The Size Of An Exterior Angle

### 20/07/2012 · To create an exterior I'm going to take the angle I know the 45 degrees and extend it out. Now I have created an exterior angle. So this is now an exterior angle …

- 11/10/2008 · if your angle is on a straight line then you take away the interior angle from 180 and you get your answer. Also remember a triangle interior adds up to 180 so if you know the 2 of the angles you can work out the other one.
- To complete this activity children will need to: - recall the number of sides for polygons down to a dodecagon - use algebra to calculate the sum of the interior angles for each shape - find the size of each interior angle using logic (division) - calculate the size of each exterior angle (180 - interior angle = exterior angle) This will get the room buzzing and you'll see your children using
- Exterior angle of a dodecagon (12-sided regular polygon) is supplementary to its interior angle. Sum of all interior angles of #N# -sided regular polygon equals to #(N-2)*180^o# .
- So each exterior angle is 360 divided by the n, the number of sides. As a demonstration of this, drag any vertex towards the center of the polygon. You will see that the angles combine to a full 360° circle.

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