Sunday

August 31, 2014

August 31, 2014

Posted by **Jerico** on Thursday, May 23, 2013 at 9:35pm.

- Math (geometry) -
**Steve**, Friday, May 24, 2013 at 11:25amThere are 9 40° angles in a circle, so the nonagon consists of 9 isosceles triangles, having angles of 40,70,70.

The radius is r, where

6.42/r = cos20°

**Related Questions**

Geometry - the side of a regular hexagon is twice the square root of its apothem...

geometry - in order to find the area of a regular hexagon using the formula Area...

Geometry - Find the area of the regular polygon with the given radius. The ...

Geometry - Find the area of the regular polygon with the given radius. The ...

Geometry - Find the area of the regular polygon with the given radius. Radius: ...

geometry - find the meausre of each exterior angle for a regular nonagon

Geometry - What is the area of a regular pentagon with a side length of 9.4 feet...

Geometry - How do you find the apothem of a regular pentagon? Hexagon?

Math--Area - Find the area of each regular polygon to the nearest tenth. Octagon...

Math/Geometry - Can you help me with this? Find the area of each regular polygon...