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anonymous

  • one year ago

At a school carnival, the diameter of the mat of a trampoline is 10 feet and the diameter of its metal frame is 12 feet. What is the length, in feet, of the metal frame that surrounds the trampoline? Use 3.14 for π and round your answer to the nearest tenth.

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  1. anonymous
    • one year ago
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    does anyone understand

  2. Michele_Laino
    • one year ago
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    I think that the requested length is given by the subsequent formula: \[\Large L = 2 \times 3.14 \times \frac{d}{2}\] where d= 12 feet

  3. anonymous
    • one year ago
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    oh

  4. Michele_Laino
    • one year ago
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    hint: \[\Large L = 2 \times 3.14 \times \frac{d}{2} = 2 \times 3.14 \times \frac{{12}}{2} = ...?\]

  5. Rushwr
    • one year ago
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    I agree @Michele_Laino @bubbleslove1234 As they are talking about a circle kind of like thingy, when they ask the surrounding it is gonna be the circumference of the circle. So we are able to use this equation \[C= 2\pi r\]

  6. Rushwr
    • one year ago
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    where as r is the radius of the circle. ! Hence we can substitute it to \[\frac{ d }{ 2}\]

  7. Rushwr
    • one year ago
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    Hope u understood me

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