GeoGebra
GeoGebra
  • Lines and Angles
      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

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.

  • 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

Next
Basic Geometric Objects and definitions

New Resources

  • One Point of Inflection
  • How Many Radians?
  • Horizontal Translation
  • Bibi Khanun entrance gate inside wall - ks
  • Gur Emir minarets - ks

Discover Resources

  • complex real roots
  • Modul 9G_Soemartini_SMPN 4 Malang
  • Ayvazov's Task
  • Proof of Pyth theorem (areas)
  • Rate of change

Discover Topics

  • Sequences and Series
  • Power Functions
  • Circle
  • Expected Value
  • Cube

GeoGebra

  • About
  • Partners
  • GeoGebra on Tests
  • News Feed
  • App Downloads

Apps

  • Calculator Suite
  • Graphing Calculator
  • 3D Calculator
  • CAS Calculator
  • Scientific Calculator

Resources

  • Classroom Resources
  • Learn GeoGebra
  • Classroom
  • Geometry
  • Notes
  • Terms of Service Privacy License
  • Facebook Twitter YouTube