Posted by **Tyler** on Wednesday, April 16, 2008 at 6:01pm.

How big is each interior angle in a regular decagon? would this be 4.4 (144/10)?

How big is each exterior angle of a regular decagon?

Is this 36? (360/10)

- Math -
**bobpursley**, Wednesday, April 16, 2008 at 6:09pm
Isnt there a theorem that the sum of the interior angles is

180(n-2), so then each interior angle of a regular n-gon would be\

180(n-2)/n

- Math -
**Ms. Sue**, Wednesday, April 16, 2008 at 6:09pm
Each angle measures 144 degrees.

http://www.coolmath.com/reference/polygons.html

(Broken Link Removed)

## Answer this Question

## Related Questions

- Math - Here is the question that I need to answer: Mr.T wanted to remodel his ...
- math--fast help please - Find the interior and exterior angle measurements of a ...
- geometry - The area of a regular decagon is 50cm2. What is the area of a regular...
- math. - Each exterior angle of a regular polygon is 15 degrees. 1.Determine the ...
- calculus - A regular decagon(12 sides) in inscribed in a circle with the radius ...
- calculus - A regular decagon(12 sides) in inscribed in a circle with the radius ...
- Geometry - What is the sum of the measures of the interior angles of a convex ...
- math - The exterior angle of a regular polygon is the angle formed by an ...
- Math - Are the statements Always, Sometimes or Never. Please explain why. Thanks...
- geometry - If the ratio of the interior angle to the exterior angle is 5:1 for a...