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Jan 11, 2023 · Learn how to draw 120° angles using a compass, a pencil, and a straightedge. A 120° angle is the adjacent angle to a 60° angle, which you can construct by swinging arcs from two points on a line segment.
Learn how to construct a 120 degree angle using a compass and a ruler. Follow the steps and see the diagrams to draw an arc that cuts the original arc at two points and join them with a line.
- 4 min
Learn how to construct a 120 degree angle and other angles by combining, subtracting, bisecting, or finding complementary and supplementary angles. See diagrams, examples, and worksheets for each construction method.
Learn what an angle is and how to measure it in degrees using a protractor. Find out how to identify acute, right and obtuse angles and their sums and differences.
