Antiparallel, Medians, and Symmedians

主題：幾何

An ANTIPARALLEL to side BC is line B'C' which forms a triangle that is inversely similar to ABC. The symmedian of ABC is the median of AB'C" Drag point B to explore this antiparallel.

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Central Angles and their Intercepted Arcs
Dilation
STEM Slider Assignment
Area of Rectangles
Card Flip Magic

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幾何中心或重心
等腰三角形
Pythagoras or Pythagorean Theorem
坐標
雙曲線

Antiparallel, Medians, and Symmedians

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