Recognizing three-dimensional figures in the real world requires the ability to see parts of a figure. Think about the type of cross-section created if the figure is sliced by a plane.

This activity might not be viewable on your mobile device.For this interactive activity, assistance may be required.Visit this website and follow the directions below to explore cross sections of different solids.

  1. Select the first solid.
  2. Move the slider and observe the cross section to the right of the solid.
  3. Click on the solid to change the view of the solid.
  4. Write down your observations in your notes.
  5. Select a different solid and repeat until all the solids have been viewed.

From your observations of cross sections find the cross sections of the following: