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bmar1209 Group Title

Help Needed! Find the area of each of the following shaded parts. Assume all arcs are circular. Leave all answers in terms of pi.

  • 2 years ago
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  1. bmar1209 Group Title
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  2. campbell_st Group Title
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    the area of the large semi-circle is \[A = 1/2 \pi r^2\] the 2 small semi-circles has the same radius r/2 and combined have the area of a whole circle \[A=\pi (r/2)^2 = 1/4 \pi r^2\]

    • 2 years ago
  3. myko Group Title
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    Are of each part is: \[1/2(1/2\pi r ^{2})\]

    • 2 years ago
  4. bmar1209 Group Title
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    So would the answer be \[A= 1/4\pi r ^{2}\] ?

    • 2 years ago
  5. myko Group Title
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    yes

    • 2 years ago
  6. campbell_st Group Title
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    the green shaded area is A = 1/4 pi r^2 that appears to be the only area you need to find

    • 2 years ago
  7. bmar1209 Group Title
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    yes, just the shaded portion. Thank you both for helping me!

    • 2 years ago
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