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How to use a protactor

2 Answers

5 votes

Explanation:

A protractor is used to measure angles. A protractor has the shape of a semicircle (a half circle). There is a point which is the center of the semicircle. Then there is a semicircle with numbers. Place the center of the semicircle on the vertex of the angle. Then place one side at the bottom of the semicircle on one side of the angle. Make sure that side reads 0 degrees on the protractor. Then starting from zero degrees, the numbers get larger. See what number the other side of the angle falls on. That is the measure of the angle.

User JD Brennan
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2 votes

Answer with Explanation

A protractor is a tool used to measure and draw different angles. It is shown on protector from 0 degree to 180 degree to make an angle. Suppose you have to make an angle of 30 degree, first make a horizontal line of given length then, out protector at the endpoint of a line straight. This means to drown line is just on 0 degrees line then, check where the 30 degrees is put the mark and draw line join from where you put the protector untill where you put a mark. This is a process of use of a protector.


User Mayuresh
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