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Yesterday, 00:43

What is the total surface area of the cone with a height of 12 and radius of 5

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Answers (2)
  1. Yesterday, 00:58
    0
    H = 12

    R=5

    l*l=h*h+r*r

    l*l=12*12+5*5

    l*l=144+25

    l=square root of (169)

    l=13

    SA=3.14*5 * (5+13) = 282.6
  2. Yesterday, 03:47
    0
    Using the formulasA=πrl+πr2l=r2+h2Solving forAA=πr (r+h2+r2) = π·5· (5+122+52) ≈282.74334
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