Do you mean a regular, convex polygon?
If so, connect each vertex with the center.
You now have 50 triangles.
The sum of the angles in any triangle is 180°.
But you do not want the angles at the center, subtract them off.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.