anonymous
  • anonymous
the circle above has an area of 25π in^2. what is the area of the blue sector? A.) 39.25in^2 B.) 29.4375in^2 C.) 9.812in^2 D.) 19.623in^2 I have the picture when you click on the question...Please help me :)
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
just click on the attachment
anonymous
  • anonymous
To find the area of a sector, given the area of the circle, just multiply the area of the circle by the ratio of the angle and 360 degrees. That's: blue sector area=25π(45/360)=3.125π

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anonymous
  • anonymous
area = 25π area of a sector = central angle/360 * area central angle of blue region = 45/360*25π
anonymous
  • anonymous
so the answer is B?
anonymous
  • anonymous
ita C
anonymous
  • anonymous
3.125π=9.817.
anonymous
  • anonymous
Thanks you guys :)
anonymous
  • anonymous
welcome :)

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