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梯形的面積
Author:
spkwan
Topic:
Area
,
Trapezoid
GeoGebra
New Resources
Isosceles Triangle: Quick Construction
Pelecoid
Ellipse as Envelope - Correspondence Method
van Aubel's Theorem
Stairs (Optical Illusion)
Discover Resources
test309
Reflexive side
FR Matrices
Combining Transformations
选2-1p53-hyperbola standard function
Discover Topics
Planes
Perimeter
Ellipse
LCM and GCD
Random Variables