text: guess, what, there is an equation for this\n\nThink about it the equation of the angle of a polygon is \n\nn= side\n((n-2)*180)/n = teh measure of each angle\n\nso for this\n\n((n-2)*180)/n = 170\nso \n(n-2)*180 = 170n\n180n-360 = 170n\n-360=-10n\nn=36\n\nthere are 36 sides in this polygon\n\nhope this helps, any questions e-mail me\nmatttlocke@yahoo.com