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同底同高三角形的面積比較
Author:
Methew Mau
New Resources
#9 Two Circles That Touch Once
#1 Draw a Circle
#4 Double the length of a line segment
#10 Draw Three Overlapping Circles
#14 Find the Midpoint
Discover Resources
forum2
Orbiting Billiard Balls (colour)
Nofziger.orientation
Medians
Isosceles Triangle
Discover Topics
Real Numbers
Circumcircle or Circumscribed Circle
Translation
Hypothesis Testing
Functions
