The document discusses the sum of angles for different types of polygons. It states that the sum of angles in a triangle is 180 degrees. The sum of angles in quadrilaterals, pentagons, hexagons, heptagons, and octagons can be calculated by multiplying the number of sides minus 2 by 180 degrees. The general formula provided is that the sum of angles of an n-sided polygon is (n-2) x 180 degrees.