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115_G4U11_G4U23_WB˜ ˙—» ¿º 2011.5.23 7:3 PM ˘ ` 24
115-S1-2
2. The following figure is a folded square. Find angle a.
52
a
115-S1-2
2. The following figure is a folded square. Find angle a.
52
a
