JC1A: Multiple planes and locus by Gary Ang | Dec 10, 2015 | 16JC2A, Board-casts | 0 comments [vimeography id="333"] In this lesson, we discussed multiple planes. We ended the lesson with a discussion on locus. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ