Lesson 3: Surface Area - Pyramids and Cones

   Constructing Knowledge

In the previous section, you were working with objects you likely encountered in earlier grades. Some less familiar objects, their nets, and their surface areas will now be explored.

Once you understand the basic formula for the surface area of a pyramid, you can determine the surface area of any pyramid,regardless of the shape of its base.

Right Rectangular Pyramid



In general, the surface area of a regular pyramid can be determined by finding the sum of the areas of the faces and the base.

Another type of three-dimensional object is the right cone.

Right Cone



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