MUSIC STAND A music stand can be folded up, as shown below. In the diagrams, A > EFD, D
Chapter 8, Problem 8.3.32(choose chapter or problem)
MUSIC STAND A music stand can be folded up, as shown below. In the diagrams, A > EFD, D > AEF, C > BEF, and B > CFE. Explain why }AD and }BC remain parallel as the stand is folded up. Which other labeled segments remain parallel? A BD CEFADBCEF
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