Geometry Concepts for Surface Area Calculations

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Explore various geometric shapes such as pyramids and cones to calculate surface area. Learn the differences between prisms and pyramids, understand the importance of altitude and slant height in pyramids, and differentiate between lateral and surface areas. Practice finding lateral and surface areas of cones through visual aids and tackle homework problems involving surface areas of different shapes.


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  1. Warm Up Find surface area, and leave the answer in terms of ?. Answers: 69 + 3 2, 592.5?

  2. Difference between a prism and a pyramid

  3. Pyramid, altitude, slant height

  4. Height & Slant height

  5. Lateral area

  6. Find L.A. and S.A. using a net Square Pyramid Answer: 85 m

  7. Lateral and Surface Areas of a Pyramid

  8. Finding the Surface Area of a Pyramid

  9. Finding the Lateral Area of a Pyramid

  10. Homework P712: 1, 2, 5, 6, 10, 12, 14,28

  11. Surface area of a cone

  12. Theorem 11-4

  13. Finding the Surface Area of a Cone S.A. How is this different from finding the surface area of a pyramid?*

  14. Finding the Lateral Area of a Cone L.A. 2408???2

  15. Practice* Find the Lateral and Surface Area of each cone.

  16. Homework p.713: 16-19, 21-23

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