Friday

December 19, 2014

December 19, 2014

Posted by **Rene** on Friday, December 11, 2009 at 10:18am.

á = (n-2) * 180 / n = 180 – 360/n

- Algebra -
**drwls**, Friday, December 11, 2009 at 11:42amAlthough you do not need to know this to answer that question, that is the formula for each internal angle (a) of a regular polygon with n sides.

360/n = 180-a

n = 360/(180-a)

n = 4 for a = 90 degrees (a square) etc.

**Answer this Question**

**Related Questions**

Algebra 2 - The formula A = 180(n-2)/n relates to the measure A of an interior ...

geometry - How would you complete the table? number of sides: 3, 4, 5, 6 measure...

Trig (Last URGENT) - sin2x+cosx=0 , [-180,180) = 2sinxcosx+cosx=0 = cosx(2sinx+1...

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

Please help Math - Determine the correct formula for the measures of all angles ...

math - how to define arc cosine(cosine x) for -360 deg<x< 360 deg?? a ...

Math - Solve for n á = (n-2) * 180 / n = 180 – 360/n

Physics (Algebra Bit) - I see that this is a quadratic equaion and it has been a...

math - (n-2)*180 =108n 180 n - 108 n = 360 72 n = 360 n = 5 drwls, I had totally...

equation complex number - z^4 + 81 = 0 (solve) change it to polar, then take ...