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Surface Area Calculations for Prisms, Pyramids, and Cones

Learn how to find the surface area of rectangular prism and cylinder, investigate the surface area of regular pyramids, and calculate the total surface area of cones using sector of a circle concept.

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Surface Area Calculations for Prisms, Pyramids, and Cones

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  1. Surface Area Section 8.7

  2. Prisms Pyramids

  3. Example A • Find the surface area of this rectangular prism.

  4. Example C • Find the surface area of the cylinder.

  5. Investigation 1Surface Area of a Regular Pyramid

  6. You can cut and unfold the surface of a regular pyramid into these shapes.

  7. Investigation 2Surface area of a Cone • As the number of faces of a pyramid increases, it begins to look like a cone. You can think of the lateral surface area as many small triangles or as a sector of a circle.

  8. Example C • Find the total surface area of the cone.

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