I have constructed rhombus ABCD for you. [br]Using the "Move" tool, drag vertices A, B, & D to check that the shape remains a rhombus.[br]Draw in the diagonals of the shape. [br]Using the "Angle" tool, measure different angles that we have NOT already talked about with parallelograms. What do you notice?

I have constructed Rectangle PQRS. [br]Move vertices P, Q, & R to make sure the shape stays a quadrilateral.[br]Draw in the diagonals. Using the "Distance or Length" tool, find a property that we have not yet discovered.