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10 cards from this deck
A protractor is an instrument to measure and draw angles
Degrees (°°°)
0°0°0° to 180°180°180°
On the vertex of the angle
One line that forms the angle
Scale starting with 0°0°0° on aligned line
Angle greater than 180°180°180°
360°−smaller angle360° - \text{smaller angle}360°−smaller angle
Estimate the size first
Only when diagram stated as accurate
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