Quadrilateral Tools
Quad-tools are interactive quadrilaterals. One important feature, is that any shape made by a certain quad-tool, is that type of quadrilateral. For example, any shape made with a ParallelogramTool is a type of parallelogram. Any shape made with the RhombusTool is a type of Rhombus...
Take some time to play with the quadtools... can you make an object, design, or picture using each of the Quad-tools once. Draw your picture on a sheet of paper. Try to draw your shapes as close those on the computer screen. You'll definitely want a sharp pencil and ruler!