- Lines and AnglesBasic Geometric Objects and definitionsTypes of anglesAnimated acute anglesAnimated view of right angles.Animated view of obtuse angles.Animated view of straight angles.Animated view of reflex angles.Protractor Practice (Not Random)Protractor Practice (Random)Sum of angles in polygonsAngles in a 5-pointed starSum of interior angles in a triangleSum of the angles in a triangleMissing angle in a triangleDefinition of complementary anglesMissing complementary angleSupplementary anglesMissing supplementary angleVertical anglesTriangle on a line with missing anglesAngles on a lineBroken Protractor

# Lines and Angles

- Author:
- Duane Habecker

- Topic:
- Angles, Straight Lines

A series of applets about lines and angles for 10 to 12 year old students.