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Equal Regions Surprise
Author:
Ted Courant
A quarter-circle has a half-circle inscribed, as shown.
GeoGebra
Which is greater, the Red region or the Blue region? Or are they equal?
New Resources
van Aubel's Theorem
Ellipse as Envelope - Correspondence Method
Angles and Intersecting Lines: Quick Investigation
Simplifying Radicals: Geometric Thin Slice
Piano. Keyboard.
Discover Resources
p.128개념설명
Assignment II
تعريف الدائرة
Alternate Segment Theorem
Trig Experiment
Discover Topics
Kite
Vectors 3D (Three-Dimensional)
Pythagoras or Pythagorean Theorem
Logarithmic Functions
Differential Calculus