Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Copy of Vertical Angles

Author:asimak3188, kjhunjhnuwala
Move the orange dot and see that angle a and b are always equal.
When two lines intersect, the two angles on opposite sides are called vertical angles. Vertical angles are congruent (equal). Angle a and b are congruent(equal).

New Resources

  • Dividing a 3-digit number by a 1-digit number (2)
  • Set Operations (2 Sets)
  • z`]]
  • Marion's Theorem
  • Dividing a 3-digit number by a 1-digit number (1)

Discover Resources

  • Prove: O,K,L,M,N are concyclic (5-point circle)
  • Triangle Area Investigation
  • Tangent line and secant line animation
  • bellin will work on this
  • AATpage6

Discover Topics

  • Similarity Transformation or Similarity
  • Numbers
  • Pie Chart or Circle Chart
  • Correlation
  • Hypothesis Testing
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2025 GeoGebra®