bisector of a triangle

Author:Arthur Lee

A line is drawn to pass through the vertex A and cut its opposite side. Drag D to make this line: 1. bisect the angle at A; 2. bisect the side BC; 3. cut BC perpendicularly. Can we make 2 (but not 3) of these conditions true?

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Model sferyczny - dwunastościan-dwudziestościan
အခြေခံ data အခေါ်အဝေါ်များ
Slope and Road Signs
Untitled
Fourier Lissajous (Mechanical)

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Page 43-44 Textbook Assignment
Alternate Segment Theorem
Practice
starting from a dodecahedron

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General Quadrilateral
Pythagoras or Pythagorean Theorem
Division
Dilation
Special Points