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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?

New Resources

Position and Velocity Vector
Two Triangle Theorem
Right Triangle Trig Ratios: sin, cos, tan
Portions of a Sphere
Inversión esférica de nudos: el nudo trébol y el nudo ocho

Discover Resources

algebra parabola
Bisectrixes
foro añadir elementos a lista
Euler Line Construction
Draw your own Cumulative Frequency Curve
Relação entre área e perímetro

Discover Topics

Optimization Problems
Congruence
Integral Calculus
Centroid or Barycenter
Equations