©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8 Angled between Parallel Lines Alternate Angles (plus transversal) Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use

A line that crosses two, or more, parallel lines Transversal A line that crosses two, or more, parallel lines

Z Alternate Angles Alternate Angles are equal. They make a shape To see them. Press

Alternate Angles Alternate Angles are equal. They make a Z shape 70o

Two Alternate Angles Exercises ao 140o bo = 140 ao = 40o Alternate Angles in Parallel Lines. bo 40o