Wednesday

July 30, 2014

July 30, 2014

Posted by **Emily** on Thursday, September 27, 2007 at 9:04pm.

(n-2)180

-------- = 150

n

But, it dosn't work out too well when I try to single out n. Can someone tell me how to do this?

P.S. Sorry that my explanation was so long -- I was trying to get the information out there :-) THANKS!!!

- Geometry -
**bobpursley**, Thursday, September 27, 2007 at 9:12pmTake an interior angle: 150 degrees. How many sides?

the sum of interior angles is 150n (n angles, each 150 degrees)

but (n-2)180= 150n (both are sum of interior angles, and equal, so

180n-360=150n

30n=360

n= 12

\thats it.

- Geometry -
**Emily**, Thursday, September 27, 2007 at 9:18pmOh -- I get it! Thank you so much for helping me out, I really needed that info for tomorrow's test. Thx!

- Geometry -
**Colleen**, Wednesday, April 15, 2009 at 5:04pmi have absolutely no idea how to do this!

**Related Questions**

math--fast help please - Find the interior and exterior angle measurements of a ...

math. - Each exterior angle of a regular polygon is 15 degrees. 1.Determine the ...

math - The measure of an interior angle of a regular polygon is 135 degrees. ...

geometry - If the ratio of the interior angle to the exterior angle is 5:1 for a...

Geometry - 1. How many sides does a regular polygon have if one exterior angle ...

Geometry - The sum of the interior angles of polygon is 1800. Find the number of...

math - find the sum of the measures of the intieior angles of each polygon. -...

please help!!!!! someone - Each exterior angle of a regular polygon is 15 ...

goemetry - can the following formula to find the sum of the interior angles of a...

math--fast please - If I have a polygon with x+2y sides, how do I find the ...