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Meghna Thapar 5 years, 6 months ago
Read the degree marking where the ruler crosses the curved edge of the protractor. You'll notice two sets of degrees along the edge: an inner and outer scale. Both scales go from 0 to 180, but they run in opposite directions. If the angle opens to the right side of the protractor, use the inner scale.
an obtuse angle; 127°
a right angle; 90°
How to measure an angle with a <i>protractor</i>:
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