anonymous
  • anonymous
Find the area of a sector with a central angle of 216 degrees and a radius of 18.4 millimeters and round to the nearest tenth. Help please!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
do u know formula \[A=\frac{ 1 }{ 2 } r ^{2} \theta \]
anonymous
  • anonymous
No. I missed a day of class and that was the only day my teacher went over that and I have an assignment on it. :(
anonymous
  • anonymous
dont use the formula i gave u its in radians

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anonymous
  • anonymous
Oh okay.
anonymous
  • anonymous
area =\[\pi r ^{2} (\frac{ c }{ 360 })\]
anonymous
  • anonymous
c is the central angle in ur case its 216
anonymous
  • anonymous
\[\pi 18.4^{2} \times \frac{ 216 }{ 360 } =638.1705653 mm ^{2}\]
anonymous
  • anonymous
got it?
anonymous
  • anonymous
So that's the formula I should use?
anonymous
  • anonymous
yes
anonymous
  • anonymous
Awesome, thank you so much!
anonymous
  • anonymous
\[area= \pi r ^{2}\times \frac{ c }{ 360 }\]
anonymous
  • anonymous
no worries :)

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