Create the different kinds of quadrilaterals. To create your quadrilaterals of different classes, remember the [b]properties[/b] of each of the different classes of shapes.[br][br]创建不同种类的四边形。 要制作不同类别的四边形，请记住每种不同类别图形的[b]特性[/b]。[br][br]Take a [b]screenshot[/b] of each [b]new kind[/b] of quadrilateral you have created.[br]为你创建的每一种[b]新的[/b]四边形[b]截图[/b]。[br][br]

Can you build specific quadrilaterals without dragging the vertices (corners)?[br][br]Try to build examples of the following [b]classes of quadrilaterals[/b] just by plotting the corner points on the coordinate plane:[br]* square[br]* rectangle[br]* parallellogram[br]* what shape is next?[br][br][i]What do you notice about the coordinates in each of these examples? Can you come up with general rules?[/i]