1 / 10

Surface Area of Pyramids

Surface Area of Pyramids. ADDITION TO DIAGRAM – NEW VOCAB The slant height of a regular pyramid is the distance from the vertex to the midpoint of an edge of the base. .

cais
Download Presentation

Surface Area of Pyramids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Surface Area of Pyramids

  2. ADDITION TO DIAGRAM – NEW VOCAB The slant height of a regular pyramid is the distance from the vertex to the midpoint of an edge of the base.

  3. The lateral faces of a regular pyramid can be arranged to cover half of a rectangle with a height equal to the slant height of the pyramid. The width of the rectangle is equal to the base perimeter of the pyramid.

  4. Example 1 • Find the surface area of the regular pyramid. n represents the number of sides of the base, and s represents the length of one side of the base, and l is the slant height. n = 3, s = 14, l = 14

  5. Example 2 • Find the surface area of the regular pyramid. n represents the number of sides of the base, and s represents the length of one side of the base, and l is the slant height. n = 6, s = 5.2, l = 13

  6. Example 3 • Find the surface area of the regular pyramid. n represents the number of sides of the base, and s represents the length of one side of the base, and l is the slant height. n = 4, s = 12, l = 13

  7. Example 4 • Work backwards to solve for the missing information. In a rectangular pyramid, one side of the base is 30 in. The slant height of the pyramid is 29 in, and the SA = 4180 square inches. What is the length of the other side of the rectangular base?

  8. Example 5 • Work backwards to solve for the missing information. In a triangular pyramid, the base area is 50 square mm. The slant height of the pyramid is 40 mm, and the SA = 250 square mm. What is the perimeter of the triangular base?

  9. Example 6 • Work backwards to solve for the missing information. In a square pyramid, the slant height is 5 cm, and the SA = 96 square cm. What is the length of one side of the base?

More Related