How to bisect an angle
How to draw to perpendicular bisector of a line
How to draw a perpendicular to a line from a point on the line
How to draw a parallel to a line
How to draw an equilateral triangle
How to draw a pentagon
How to draw a tangent to a circle from a point
How to draw a perpendicular to a line from a point off the line
Why Learn That?
Why Learn That aims to make learning fun and strives to make it relevant. It also acts as a hook for increasing an awareness of wider scientific, mathematical and engineering topics.