Euclid's Fifth

Euclid's Fifth Postulate

Adjust the sliders to change the size of alternate angles n and m. Can you find the relationship between n and m to decide which side of XY the lines AB and CD cross?

New Resources

The black friday GeoGebra :)
အခြေခံ data အခေါ်အဝေါ်များ
Silhouettes without gaps and isolated
Function Art 3D - Pawn
koch tool

Discover Resources

Composite function
eAssessment practice
MillerL
Doubling cube with ellipse
Factoring Fluency: a=1

Discover Topics

Complex Numbers
Square
Centroid or Barycenter
Confidence Interval
Division