GT.2: Investigate 2D shapes and 3D solids:  [br]- a. Draw and interpret scaled diagrams.  [br]- b. Draw and interpret nets of rectangular solids, prisms, cylinders.  [br]- c. Find perimeter, area of plane figures (discs, triangles, rectangles), operations involving π.  [br]- d. Calculate volume (rectangular solids, cylinders, prisms, spheres), operations involving π.  [br][b]- e. Determine surface area (rectangular solids, cylinders, prisms, spheres).[/b][br][br]The sliders control the radius and height of the cylinder below. Adjust the sliders. Can you find a relationship between the base area and the volume of the cylinder?