Single Triangle Mode

• Manipulate the triangle by dragging the vertices.
• Optionally lock any side or angle to its current size.
• Various constructions can be added for guidance:
  • The circumcircle,
  • A circle on any vertex of radius equal to the length of either connected side,
  • Any side extended in both directions.
• Any visible constructions will dynamically update as the triangle is changed, unless explicitly locked.
• Use the Overrides options to apply a particular transformation.

Two Triangle Mode

• Simultaneously display a free triangle and a constrained triangle.
• Apply constraints and manipulate the second triangle, then compare both triangles to see the effects.
• Return the constrained triangle to the same state as the unconstrained one at any time using the Revert button.
• Hit the Compare button to compare the triangles directly.