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Outline

  1. Lines and Angles
    1. Basic Geometric Objects and definitions
    2. Types of angles
    3. Animated acute angles
    4. Animated view of right angles.
    5. Animated view of obtuse angles.
    6. Animated view of straight angles.
    7. Animated view of reflex angles.
    8. Protractor Practice (Not Random)
    9. Protractor Practice (Random)
    10. Sum of angles in polygons
    11. Angles in a 5-pointed star
    12. Sum of interior angles in a triangle
    13. Sum of the angles in a triangle
    14. Missing angle in a triangle
    15. Definition of complementary angles
    16. Missing complementary angle
    17. Supplementary angles
    18. Missing supplementary angle
    19. Vertical angles
    20. Triangle on a line with missing angles
    21. Angles on a line
    22. Broken Protractor

Lines and Angles

Author:Mr. Bowen, Duane Habecker
Topic:Angles
A series of applets about lines and angles for 10 to 12 year old students.

  • Basic Geometric Objects and definitions

  • Types of angles

  • Animated acute angles

  • Animated 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 polygons

  • Angles in a 5-pointed star

  • Sum of interior angles in a triangle

  • Sum of the angles in a triangle

  • Missing angle in a triangle

  • Definition of complementary angles

  • Missing complementary angle

  • Supplementary angles

  • Missing supplementary angle

  • Vertical angles

  • Triangle on a line with missing angles

  • Angles on a line

  • Broken Protractor

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