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Dallasb22

  • 3 years ago

What is the area of a sector with radius 10" and measure of arc equal to 45°?

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  1. campbell_st
    • 3 years ago
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    what fraction of a circle is an angle of 45..? the Sector Area = fraction x pi x r^2

  2. Dallasb22
    • 3 years ago
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    1/8 times pi times 100??

  3. campbell_st
    • 3 years ago
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    thats it.. well do... to get the fraction just use 45/360 the multiply by the area of the circle

  4. Dallasb22
    • 3 years ago
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    So do what next?

  5. campbell_st
    • 3 years ago
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    just multiply it out... the answer should be just less that 40 in^2

  6. Dallasb22
    • 3 years ago
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    25/2 pi?

  7. campbell_st
    • 3 years ago
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    you thats the exact answer..

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