Mathematics for IGCSE & O level - Geometrical Constructions (Section 2 - No. 11)
What is the most important initial step when measuring an angle using a protractor?
Measuring the arms of the angle.
Estimating the angle's approximate measure.
Lining up the zero line with a vertex.
Using the correct protractor scale
Explanation
Estimate the angle size is the important initial step.
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