Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Thales' theorem-Angle in Semi Circle

Author:Sangeeta Gulati, Irina Vasilescu
Topic:Circle
Watch carefully and answer the questions!

New Resources

  • Odd Function Explorer
  • Slope Illustrator (2)
  • Congruent Sides & Angles in △s: Exploration
  • Squaring a Rectangle (PST Version)
  • Pythagorean Theorem: Quick Illustrator

Discover Resources

  • Construction of a rhombus
  • Inequality on the Number Line
  • CCSS High School: Geometry (Modeling with Geometry)
  • puzzlepiece.AdrionHadler.ggb
  • Intersecting lines

Discover Topics

  • Intersection
  • Frequency Distribution
  • Logarithmic Functions
  • Square
  • Histogram
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

© 2026 GeoGebra®