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10-4 Surface Areas of Pyramids

10-4 Surface Areas of Pyramids. Objective – Find the surface area of pyramids and cones. Pyramids. Slant Height. Height. Pyramid. Pyramid. Theorem 10-3. Lateral Area and Surface Area of a Regular Pyramid. Lateral Area. Base Perimeter. Slant Height. B. Surface Area. Lateral Area.

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10-4 Surface Areas of Pyramids

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  1. 10-4Surface Areas of Pyramids Objective – Find the surface area of pyramids and cones.

  2. Pyramids Slant Height Height Pyramid Pyramid

  3. Theorem 10-3 • Lateral Area and Surface Area of a Regular Pyramid Lateral Area Base Perimeter Slant Height B Surface Area Lateral Area Base Area

  4. #1 Finding Surface Area of a Pyramid • Find the surface area of a square pyramid with base edges 5 m and slant height 3 m.

  5. #2 Finding Surface Area of a Pyramid • Find the surface area of a regular hexagonal pyramid with a slant height 20 in and sides 8 in.

  6. #3 Finding Surface Area of a Pyramid • Find the lateral area of a regular hexagonal pyramid. l

  7. Cones Slant Height Cone

  8. Theorem 10-4 • Lateral Area and Surface Area of a Cone Lateral Area Radius Slant Height Surface Area Lateral Area Base Area

  9. #4 Finding the Surface Area of a Cone • The radius of the base of a cone is 5 m. Its slant height is 13 m. Find the surface area.

  10. #5 Finding the Surface Area of a Cone • The diameter of the base of a cone is 30 m. Its slant height is 25 m. Find the surface area.

  11. #6 Finding the Surface Area of a Cone • Find the slant height and the lateral area to the neatest whole number.

  12. Assignment Page 540 #1-20

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