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Protractors For Dummies
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Protractors for Dummies C.N. Colon David Ojeda De-Havaland Levy
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Transcript of Protractors For Dummies
Protractors for DummiesC.N. Colon
David OjedaDe-Havaland Levy
Step 1 Using a
protractor will help you to identify angles
First draw an angle as displayed in the picture
Step 2 Place protractor
so that the zero line is directly on top of ray B
DO NOT DO IT THIS WAY
Step 3 Align the center
line of the protractor directly with the vertex of the angle
Step 4 Now find the
number on the protractor where ray A passes through the curved part of the protractor
Step 5 Voila! This angle
measures 55° Now it’s your
turn…