Hinge Theorem and Its Converse

Author:Samantha Garcia

In the figure below, AE = BF and AC = BD. Move points E, C, F, and D to change the size of angles A and B. What do you notice about the lengths of EC and FD and their opposite angles?

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Trefoil Knot
bewijs stelling van Pythagoras
Damped Trochoidal Curve
Cartesian vs Polar
Slope Between 2 Points (Phase 2)

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Creating an equilateral triangle
bisecting segments and angels
Right Triangle
Illusion of bounce

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Circumcircle or Circumscribed Circle
LCM and GCD
Mathematics
Upper and Lower Sum or Riemann Sum
Random Variables