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Angles in a Triangle
Author:
Herman Vanderkooy
Topic:
Angles
GeoGebra
New Resources
Bottema's Theorem
Slope of a Straight Line: Run and Rise
"Compressed" Astroid as Envelope
Construct a Square
Ellipse, Hyperbola and Circle as Envelopes
Discover Resources
Geometry Chapters 1-3 (Intro, angle pairs, triangles)
Volume Apps
Slope of perpendicular
Clock: Minutes past the hour
以分數比較數量
Discover Topics
Integral Calculus
Area
Ellipse
Matrices
Exponent