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anonymous

  • one year ago

A rectangle is placed around a semicircle as shown below. The width of the rectangle is 4mm. Find the area of the shaded region. Use 3.14 and do not round your answer.

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  1. anonymous
    • one year ago
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  2. Vocaloid
    • one year ago
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    |dw:1433049490812:dw| area of shaded region = area of rectangle - area of semicircle

  3. Vocaloid
    • one year ago
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    we know that the length of the rectangle is 4 + 4, because the radius of the circle is 4, and the bottom of the rectangle is twice the length of the radius

  4. anonymous
    • one year ago
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    so is it going to be 4^2? then since the bottom of the rectangle is twice the length of the radius?

  5. anonymous
    • one year ago
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    area of rectangle=8*4=? area of semi circle\[=\frac{ \pi r^2 }{ 2 }=\frac{ 3.14*4*4 }{ 2 }=3.14*8=?\] subtract and get the result.

  6. anonymous
    • one year ago
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    25.12?

  7. anonymous
    • one year ago
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    @surjithayer

  8. anonymous
    • one year ago
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    32-25.12=?

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