Triangles

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?

New Resources

bewijs stelling van Pythagoras
Weighing Scales (g): Practice
Use a matrix with its elements as functions
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Equilateral Triangle Cross Sections

Membuka sumber

Browniano_prova
Circumscribed Triangle
Galperin's billiards - NYTimes Wordplay explanation
Segments of Circles - 2 Chords
Constructions Parish
Midline Theorem