AA Similarity

Author:Patricia Arnold

The sketch was made so that angles A and D are always congruent and the vertical angles are always congruent. Move point D, being sure the sketch always has TWO triangles. How do the two triangles appear to be related?

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函數的單調性
apec
bewijs stelling van Pythagoras
Perspective in Art
The Datasaurus Dozen

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Optional-Another Mapping Diagram Visualizing Solving a Linear Equation
pg 70 #5
The dartboard
พื้นผิวในปริภูมิ 3 มิติ
Копие на Net of Hexagonal Prism

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Standard Deviation
Equilateral Triangles
Division
Volume
Planes