- Some terms & definitions. Angles, angle pairs, angle measureBasic Geometric figures - illustration & 4 questionsPoint(s), a Line, Ray(s), Segment(s), & an angle - interactive & 3 questionsTypes of angles - the 5 classificationsAnimated acute anglesAnimated view of right angles.Animated view of obtuse angles.Animated view of straight angles.Animated view of reflex angles.Protractor Practice (Random)"Broken" ProtractorProtractor Practice (Not Random)"proof" of the triangle sum theoremSum of the interior angles in a triangle is always _Missing angle measure in a triangleSum of the interior angles of a polygonDefinition of complementary anglesMissing complementary angle measureSupplementary angles - a pair of angles whose sum is always _What is the measure of an angle's supplement?Vertical anglesAngles on one side of a line - parts of a straight angleTriangle on a line with missing angles measures

# Some terms & definitions. Angles, angle pairs, angle measure

- Author:
- Zawierucha, Duane Habecker

A series of applets about some terms/definitions. Angle classification, angle measurement with a protractor, angle pair relationships, sum of interior angles. Interior and exterior angles of a triangle