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anonymous

  • one year ago

Find the surface area of a cone with a radius of 2.7 cm and a slant height of 8.3 cm, to the nearest square unit. Use 3.14 for p. a. 116 cm2 b. 164 cm2 c. 93 cm2 d. 58 cm2

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  1. some.random.cool.kid
    • one year ago
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    Alright so what our area?

  2. anonymous
    • one year ago
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    @some.random.cool.kid you think you can help me with this problem

  3. some.random.cool.kid
    • one year ago
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    I can certainly try! :D

  4. anonymous
    • one year ago
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    alright @some.random.cool.kid

  5. some.random.cool.kid
    • one year ago
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    A=πr(r+h2+r2)

  6. some.random.cool.kid
    • one year ago
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    you have your height as 8.3

  7. some.random.cool.kid
    • one year ago
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    so fill this in A=πr(r+h2+r2)=π·2.7·(2.7+8.32+2.72)

  8. anonymous
    • one year ago
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    ok

  9. some.random.cool.kid
    • one year ago
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    well first you are is A≈96.94cm²

  10. anonymous
    • one year ago
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    oh yeah ok

  11. anonymous
    • one year ago
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    oh yeah ok

  12. anonymous
    • one year ago
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    ok

  13. some.random.cool.kid
    • one year ago
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    alright so do you think you can try the next step on your own? I will be trying to solve it while you do k.

  14. anonymous
    • one year ago
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    alright

  15. some.random.cool.kid
    • one year ago
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    explanation r = 2.7 m h = 8.3 m s = 8.72812 m V = 63.3628 m3 L = 74.0345 m2 B = 22.9022 m2 A = 96.9367 m2 I believe you multiply this to get part however 96.94 x 8.3 wont give you your answer their is another step I believe. radius x height = 22.41 I belive your closet answer is 93cm^2 But can also be 164cm^2 so please challenge me if im wrong but its between both of those answers.

  16. some.random.cool.kid
    • one year ago
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    @Nnesha or @nincompoop you guys might able to explain this better than I ...

  17. some.random.cool.kid
    • one year ago
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    got it i believe your answer is 93

  18. some.random.cool.kid
    • one year ago
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    I used woldfram and found the answer to the area I was confused at first but then figured it out.

  19. some.random.cool.kid
    • one year ago
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    hope this helped @michael305

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