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The Angle in a Semi-Circle
Author:
aamtinc
Topic:
Circle
Change the position of A, D or O and observe the relationship between the angles.
GeoGebra
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Forming Similar Triangles
Pythagorean Day
拼砌四邊形 - 工作紙
Colors for GeoGebra
Ringed Polyhedra
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Solution of simultaneous equations
ความสัมพันธ์กราฟของสมการเชิงเส้น
Geogebra Transformations 2
Ex1b. Reflection in the line x = 0
Parallelogram properties
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Function Graph
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Similar Triangles