New posts in Geometric Construction

Construct the intersection of a cube by a plane through $3$ points on its edges, no pair of which is on the same face

Thinking outside of the box

Ruler and compass construction of the unit-distance petersen graph embedding

Equilateral triangle geometric problem

Sangaku. How to draw those three circles with only a ruler and a compass?

Construction of a right triangle

Representing the multiplication of two numbers on the real line

Did anyone ever build a mechanical device to take fifth roots, or solve general quintics?

Geometric proof of existence of irrational numbers.

Find the maximum area possible of equilateral triangle that inside the given square