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Warm up!

Warm up!. Find the surface area of the backpack to the nearest inch:. The base is 12 in, but what is the height? (Hint: what is the radius of the circle?). The back has the same area:. The left side has the same area:. The back has the same area:. Spheres. Geometry Unit 6, Day 6 Ms. Reed.

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Warm up!

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  1. Warm up! Find the surface area of the backpack to the nearest inch:

  2. The base is 12 in, but what is the height? (Hint: what is the radius of the circle?) The back has the same area:

  3. The left side has the same area:

  4. The back has the same area:

  5. Spheres Geometry Unit 6, Day 6 Ms. Reed

  6. What is a Sphere? • Definition: A 3-dimensional circle. • Examples:

  7. Surface Area Volume Formulas

  8. Example #1 • Calculate the volume of: 15” V = 4/3 pr3 V = 4/3()(15)3 V 14130in3

  9. Example #2 • Calculate the volume of: V = 4/3 pr3 V = 4/3()(3.9)3 V 248.349in3

  10. Example #3 • Calculate the surface area of: S = 4pr2 S =4()(6.1)2 S 467.3576 in2

  11. Homework Work Packet: Spheres

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