Key learning points

1. A rhombus can be constructed from two congruent isosceles triangles.
2. This can be used to construct a perpendicular to a line through a point.
3. This perpendicular has special properties that can be investigated.
4. Shortest distances can be found using constructions with perpendicular lines.

Common misconception

Keywords

• Bisect - To bisect means to cut or divide an object into two equal parts.

• Rhombus - A rhombus is a parallelogram where all sides are the same length.