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anonymous

  • one year ago

What is the surface area of the composite figure? (Use 3.14 for π.) 753.6 in.^2 954.56 in.^2 1,155.52 in.^2 1,356.48 in.^2

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  1. anonymous
    • one year ago
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    |dw:1434463547779:dw|

  2. freckles
    • one year ago
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    I think the bottom one is a cylinder? But I don't know what that thing is next to it? is that 5V? Also it looks like you have a semicircle on top with radius 8 in.

  3. anonymous
    • one year ago
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    7in

  4. freckles
    • one year ago
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    And that really is a semicircle on top of a cyclinder right ?

  5. freckles
    • one year ago
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    the surface area of a cylinder can be found by:\[A=2 \pi r h+2\pi r^2\] where this r is the radius of the base of the cylinder and if you really meant to put a semicircle on top of the cylinder then you will also need: \[\frac{1}{2} \pi r^2 \] where this r is the radius of the circle

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