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中考 2019 河南-23-2问：直角三角形
Author:
acchu
GeoGebra
New Resources
apec
רישום חופשי
Reflection across a line
Reflection = 180° Rotation about a Line
Equation of Locus - Parabola
Discover Resources
Pythagorean Triples
loiohm
Parallel Lines & a Transversal
Parallel Lines by Angle Copy
Diagram 2
Geogebra 1
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Symmetry
Power Functions
Volume
Probability
Constructions