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richardlong369

  • 3 years ago

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  1. richardlong369
    • 3 years ago
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  2. lalaly
    • 3 years ago
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    area of shaded=area of large circle-area of small circle are of large circle=pi*R^2=pi(18)^2=324pi area of small circle=area of large circle-areae shaded pi*r^2=324pi-150pi pi*r^2=174pi r^2=174 r=13.9

  3. richardlong369
    • 3 years ago
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    Thankyou that helped a lot

  4. lalaly
    • 3 years ago
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    :)

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