![]() Once a ray is drawn, a compass is used to mark arcs according to any measured radius. To construct an angle with any degree of measure, we need to make use of a geometric tool called a compass. We can use either protractor or a compass to construct angles of a specific measurement. They can be directly used to measure any angle within the range of 0° to 180° using the markings. Most protractors measure angles in degrees and are divided into 180 equal parts. FB is the angle bisector and now, ∠ABF and ∠FBC will measure 30 degrees each.Īn angle can be measured using a protractor which is a semi-circular disc used to draw and measure angles. Now with D and E as the centers draw two arcs such that they intersect at a point.With B as the center and with more than half of BC as radius draw an arc on both the arms, which is AB and BC, and mark these points where the arc touches the line segments as D and E respectively.Let us name the vertices of the angle as A, B, and C such that angle ABC = 60 degrees. Draw a given angle using a protractor (say 60°). ![]() To construct an angle bisector, follow the steps given below:
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