Flipping Book- BTP

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What happens?
 Elimination of error A:
 Sum of squares: 0²+1²= √1=1 mm
 Margin = 2.5*1mm= 2.5 mm
 Margin reduction: 5.6-2.5= 3.1mm!
 Elimination of error B:
 Sum of squares: 2²+0²= √4=2 mm
 Margin = 2.5*2mm= 5 mm
 Margin reduction: 5.6-5= 0.6 mm!