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Mystic Rose and Handshakes的副本
Author:
王吉利
,
Dan
,
Mr BM
握手
There is a room of 30 people. If every person shook hands with every other person, how many handshakes would there be in total?
GeoGebra
New Resources
探究由平行線和截線所成的角
Poorly Drawn Parallelograms 3
Droste effect draft
Poorly Drawn Parallelograms 2
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
step one
Rhombus with diagonals
Transversal and Angles
التحليل باكمال المربع
Vacuum Cleaner
Discover Topics
Right Triangles
Power Functions
Function Graph
Logic
Isosceles Triangles