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中考 2019 河南-23-2问：直角三角形
Author:
acchu
GeoGebra
New Resources
רישום חופשי
apec
Reflection across a line
Circle Passing Through 3 Points
Reflection Across 2 Parallel Lines
Discover Resources
Transformations of graphs of functions
Demo: Fake LaTeX Checkbox
Copie de Arkitektura TCP/IP
Стомахіон
Digital Blend Board
Discover Topics
Correlation
Standard Deviation
Angles
Diagrams
Equations