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What makes a triangle equilateral, isosceles, or scalene?

How are these triangles the same? How are they different? Manipulate the triangles by dragging their blue corner points. What happens to their side lengths?

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Nikmati Keunggulan Di Bandar Judi Terpercaya
Perimeter of Rectangle
Mondrian's Puzzle
Conway Circle Theorem
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Transformed graph
Rotation by 90 degrees
包含除法（整數÷整數）_ 工作紙（二）
KeepInFrame

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Combinatorics
Quadratic Equations
Symmetry
Surface
Functions