Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Prove Parallel by 180° rotation by contradiction
Author:
mathisSObeautiful
Topic:
Geometry
,
Rotation
Assume that when AB is rotated 180° around point C not on line AB, AB and A'B' intersect in point X. Drag points to discover the contradiction.
GeoGebra
New Resources
Dissections by Guillermo Bautista
Exploring the Derivative of a Quadratic Function
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Variation Theory Parallelogram Proofs
Parallelograms: Quick Investigation
Discover Resources
Complementary Angles
math
day 110
EM 2019 P2 Q10c
Forced Oscillation
Discover Topics
Reflection
Difference and Slope
Isosceles Triangles
Indefinite Integral
Median Value