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Allythegymnast

  • 2 years ago

23. Name three faces of the cube above that intersect at point G. (1 point) a. DHGC, CBFG, GFEH b. ABFE, ADHE, ABCD c. DCBA, GEBF, GFEH d. GDAF, CBFG, GFEH 26. Find the surface area of the cylinder to the nearest tenth of a square unit. Use pi. = 3.14. a. 206 cm2 b. 100.5 cm2 c. 623 cm2 d. 412 cm2 mc0262.jpg nar0021.jpg

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  1. TammisaurusRex
    • 2 years ago
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    I'll give you one face for the cube, and you should be able to find two more. One is ABCD.

  2. TammisaurusRex
    • 2 years ago
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    As for the surface area of the cylinder.. do you know the formula to find the surface area of a cylinder?

  3. Allythegymnast
    • 2 years ago
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    no..

  4. ConnexussKidd96
    • 2 years ago
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    which unit and lesson

  5. Allythegymnast
    • 2 years ago
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    unit 2 lesson 16. 7th grade

  6. TammisaurusRex
    • 2 years ago
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    Here's the formula for the surface area of a cylinder: \[2\pi r ^{2} + 2\pi r h\] Where r = radius h = height \[\pi = p i\]and pi = 3.14

  7. TammisaurusRex
    • 2 years ago
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    Do you know how to plug your values in?

  8. ConnexussKidd96
    • 2 years ago
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    ohh im in 10th grade lol

  9. Allythegymnast
    • 2 years ago
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    No....

  10. Allythegymnast
    • 2 years ago
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    i tried but i got a WAY different answer then the answers provided..

  11. TammisaurusRex
    • 2 years ago
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    What values did you plug into where? (what did you use for the radius and what did you use for the height?)

  12. Allythegymnast
    • 2 years ago
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    wait i think i got it is it 412???

  13. TammisaurusRex
    • 2 years ago
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    Well, here's how it should look before solving:\[(2)(3.14)(4^{2}) + (2)(3.14)(4)(12.4)\]

  14. TammisaurusRex
    • 2 years ago
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    If you simplify that by squaring the radius, then it's: (2)(3.14)(16) + (2)(3.14)(4)(12.4) How would you go bout solving this?

  15. Allythegymnast
    • 2 years ago
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    |dw:1361818233566:dw|

  16. TammisaurusRex
    • 2 years ago
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    Yes! Very good!

  17. Allythegymnast
    • 2 years ago
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    Thx!!

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