How to construct a square with a ruler and a compass. This Youtube video from Michael Hartley shows three constructions - one where the square's edge is given, one where the square is drawn inside a given circle, and one where the square is drawn just outside a given circle.

- Mathematics > General
- Mathematics > Geometry

- Grade 9
- Grade 10

Reason abstractly and quantitatively.

Construct viable arguments and critique the reasoning of others.

Use appropriate tools strategically.

Attend to precision.

Look for and make use of structure.

Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.