Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Concyclic
Author:
FUKUCHAN
Given triangle ABC and point D on AB. O1 is circumcircle of triangle ADC, O2 is circumcircle of triangle DBC. E on AB, F on O1, G on O2, EF//BC, and EG//AC. Please prove that points D, E, F, and G are concyclic.
GeoGebra
New Resources
Slope of a Straight Line: Run and Rise
Construct a Square
Pelecoid
Ellipse as Envelope - Correspondence Method
Witch of Agnesi - A Classical Construction
Discover Resources
Geo Unit 9 Project Parallegram
MCGEE QUIZ
Geogebra5
Geometric Patterns, Nature and the Arts
NTI Water Park Project
Discover Topics
Similarity Transformation or Similarity
Reflection
Step Functions
Hyperbola
Multiplication