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

Squaring a Rectangle (PST Version)
Laundry Basket
Linear Combination of Vectors
Rossler's Attractor
Mandelbrot

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reflection-9
EllipseReflect
Two Risky and One Risk Free Investment Zoomed
Isometric whiteboard
Geometric Invariants

Discover Topics

Means
General Quadrilateral
Cuboid
Curve Sketching
Quadrilaterals