Master the fundamental constructions of Engineering Graphics & Design — line types, bisectors, tangents, regular polygons, and the helix — using nothing but a compass and straightedge.
Drag point P to see the tangent construction update live. Notice how each tangent always meets its radius at exactly 90°, and how the tangent length grows as P moves further from the circle.
Each exercise below prints as a full-scale A3 sheet with a small reference drawing in the bottom-left corner — the same format used in EGD practical assessments. Use your printer's "Actual Size" setting (not "Fit to Page") so measurements come out true to scale.