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Construction of Some Standard Angles (30°, 45°, 60°, 90°, 120° and 135°) - Steps and Examples
Construction of Angles by using Compass, Construction of Angles
Constructing Angles of 60º, 120º, 30º and 90º
30 Degree Angle - Steps of Construction, How to Measure?, Examples
The_trigonometry_functions
Draw a circle of radius 3 centimetres.(a) Draw triangle ABC with this circle as circumcircle and angle 50^o, 60^o and 70^o.(b) Construct triangle PQR, outside the circle, by drawing tangents to the
Construction of Angles by using Compass, Construction of Angles
How to Construct a 60 Degrees Angle Using Compass and Ruler
How to construct a 30-60-90 triangle with compass and straightedge or ruler - Math Open Reference