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Smiley75

  • 3 years ago

What is the approximate volume of a cone-shaped party hat a base whose circumference is 25.12 inches and height is 8 inches? a. 401.92 cubic inches b. 33.49 cubic inches c. 133.97 cubic inches d. 535.89 cubic inches

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  1. QuantumModulus
    • 3 years ago
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    Circumference = 2*pi*r Volume of Cone = 1/3 * pi * r^2 You're given the circumference; use it to find the radius. Plug that back into the volume formula for your answer.

  2. amistre64
    • 3 years ago
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    formula for any conic shape is: (1/3)(Area of Base)(height)

  3. LeopoldBr
    • 3 years ago
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    so r=3.99 V=133,90 cubic inches ( C )

  4. QuantumModulus
    • 3 years ago
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    Sorry, totally forgot to add *h to the volume formula!

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