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Author:
Lê Trung Tín
Discover Resources
Isosceles and Equilateral
Number 78
second Sketch
Tangram puzzles (5)
sum of exterior angles of a triangle
New Resources
TriPyramidGeoSim
TriPrismGeoSim
Geometric Intuition of Multiplying Numbers
Question 10
9.1.3 Pre #1103407 option D
