Edit Delete - Last Modified By: CRT at 31/07/2013 10:51:46 AM
The below link demonstrates Parallel lines, Transversal line and Vertical angles.
Edit Delete - Last Modified By: CRT at 31/07/2013 10:54:02 AM
Supplementary Angles Explanation
Edit Delete - Last Modified By: CRT at 31/07/2013 10:56:11 AM
Complementary Angles Explanation