Lesson 86. Properties of Parallel Lines

T6-criterion for parallel lines

[bgcolor=orange] If two lines are intersected by a third line, and alternate interior (or exterior) angles are equal, then the original two lines are parallel. [/bgcolor]

New Resources

အခြေခံ data အခေါ်အဝေါ်များ
Random Polar Curve (1)
Circumference of a unit circle
bewijs stelling van Pythagoras
Rolling a Square

Discover Resources

Point P is a weighted average of A and B.
Unsolving0
Find x: Use The Triangle Sum Theorem and Solve an Equation.
Secciones de cuerpos geométricos

Discover Topics

Confidence Interval
Upper and Lower Sum or Riemann Sum
Variance
Pyramid
Kite