A secondary school revision resource for GCSE Maths about foundation level shapes and polygons.
The sum of the exterior angles of a polygon is 360°. (Make believe a [big] polygon is traced on the floor. Stand on one of the vertices and face in ...
A polygon by definition is any geometric shape that is enclosed by a number of straight sides, and a polygon is considered regular if each side is equal in length.
Algebra -> Polygons -> SOLUTION: What is the formula to find out the number of sides of a regular polygon when one interior angle is given? Log On ...
Algebra -> Polygons -> SOLUTION: Find the number of sides of the regular polygon whose interior angles each measure 156 degrees Log On ...
Jan 5, 2015 ... Using the formula of the sum of interior angles. 162 ( n − 1 ) + 126 = 180 ( n − 2 ) ⇒ n = 18. Remark: I assume a simple and plane polygon.
Jan 27, 2012 ... Hints to walk through this problem: In the visible grey quadrilateral, what do the top two angles add up to? How big is each angle of the partly ...