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Start, Perpendicular Bisector
Author:
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GeoGebra
New Resources
x2x: Spindle
Linear Function to Bowl or Cup
Exploring Dilations
Slopes of Parallel and Perpendicular Lines - Discovery & Assessment: Quick Demo
Dilations Part 2: What Do You Notice?
Discover Resources
Transformations
My Space
Trianlge
[洋葱] 垂径定理
Relation Between Exterior and Interior angles of a Triangle
Discover Topics
Kite
Median Line
Bar Chart or Bar Graph
Circumcircle or Circumscribed Circle
Addition