Construction of 36° Angle Using Straightedge and Compass

Using a protractor, draw an angle of measure 72∘. With this angle

Construction of Angles by using Compass, Construction of Angles

Radius of curvature of a hyperbola at any point with straightedge

Construction

Straightedge and compass construction - Wikipedia

Construction of Angles by using Compass, Construction of Angles

Orienting link OL 3 via Kempe's additor. OL 3 sums the angles made

How to construct an angle of 36 degrees using only a ruler and a

Constructibility 1: Compass & Straightedge

Construction of 36° Angle Using Straightedge and Compass

How to Construct a 60 Degrees Angle Using Compass and Ruler

Radius of curvature of an ellipse with straightedge and compass

Construction Of angle (30 , 45 , 60 , 75 , 90 , 105 , 120, 150

Angle Trisection -- from Wolfram MathWorld