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

Catriona's Semicircles

Author:John Golden
Topic:Angles
What's the angle formed by these two semicircles in an equilateral triangle? Another great Catriona Agg puzzle. https://twitter.com/Cshearer41/status/1425433706081267716?s=20
Image

New Resources

  • From Polar to Cartesian Coordinates
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Average Value
  • z`]]
  • Billard V5.2 and V6

Discover Resources

  • Polygon
  • MichelleMittaz_TestingSimiliarityTheoremsHW
  • Modul 6 (Bayangan Dua Lingkaran)_Rahmawati_SMA Negeri 03 Bombana
  • Algebra 2 Inside/Outside The Argument Transformations
  • Properties of Triangles

Discover Topics

  • Indefinite Integral
  • Random Variables
  • Statistical Characteristics
  • Boxplot
  • Planes
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®