Quadrilateral Tester

Author:Norm Krumpe

To test out different quadrilaterals, you can either drag points A, B, C, and D, or you can manually type in their coordinates on the left side of the screen.

New Resources

AI for Math Teachers (prompt examples)
bewijs stelling van Pythagoras
Parallel Lines and Angles: Thinking Classroom Exploration
Perimeter of a Rectangle with Unknown Sides
Open Education 2026

Discover Resources

Project Test File
Untitled
COSMOS - Little Chess Board Challenge
A.2.7.2 Explaining Acceptable Moves
Parametric curves on intervals

Discover Topics

Root
Area
Ratios
Exponent
Algebra