Parallel Lines Alternate Angles Proof #gcse #parallellinesandatransversal #alternateangles

This is part 1 of a two-part series in which I set out to prove the alternate (and corresponding ) angles formed by two parallel lines and the transversal that intersect them. In this part I prove the alternate angles. For more in-depth details of how to identify alternate angles (and corresponding angles too) and some example questions, check the video linked below:    • How To Find Corresponding And Alternate An...   Chapters: 0:00 introduction and another helpful video 0:55 video recommendation 1:18 setting up structure to prove initial alternate angle pair 3:51 proving the second pair 4:45 proving the third pair 5:42 proving the last pair Subscribe to TinyMaths here: https://www.youtube.com/c/TinyMaths/v...