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

Viviani's Curve
Rose Curve
Hyperbolic Paraboloid
Model sferyczny - dwunastościan-dwudziestościan
Damped Trochoidal Curve

Discover Resources

right angle triangle geometry
My Unit 13 Test
Angle Sum of Quadrilateral
Circle theorem 1
SSS: Dynamic Proof!

Discover Topics

Arithmetic Operations
Linear Functions
Perimeter
Upper and Lower Sum or Riemann Sum
Function Graph