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GeoGebra
start, create an isosceles triangle
Author:
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Discover Resources
String-Triangle
Trigonometric Ratios of Rotation and Reference Angles的副本
Euclid's Proof of the Pythago…
Bryce orthocenter
Segments in Circles Discovery
New Resources
Point Park Points of Concurrency
new44
Triangle Lines of Concurrency
Happy New Year! Team 2 -10
parallel exploration Hw
