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Author:
Arie Wibowo
GeoGebra
New Resources
Roll 6d five times
以竹簽拼砌三角形
Untitled
Flip 9 Coins
Balls in an Urn
Discover Resources
Hoeksom driehoek vermoeden
The Unit Circle and a Trig function in the Cartesian Plane
Invariant points in the line x=y. Points B, C, D are invariant in the line x=y. But A is reflected as A' in the line x=y.