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Construction of Angles Constructing 30, 60, 90, 120 Degree Angles

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Construction of Angles - In an equilateral triangle, all the angles are equal and they are equal to 60º in size. Thus, in order to draw 60º, we need to construct an equilateral triangle. 120º angle can be constructed using the logic that 60º + 120º = 180º. Thus, we can understand that in order to construct 120º we can construct 60º angle.

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Constructing Angles of 60º, 120º, 30º and 90º

Draw angle ABC = 120^circ . Bisect the angle using the ruler and compasses only. Measure each angle so obtained and check whether the angles obtained on bisecting angle ABC are equal

Constructing Angles of 60º, 120º, 30º and 90º

Construction of Angles Using Protractor and Compass (Examples)

Construction of Angles Using Protractor and Compass (Examples)