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  1. You know how you take the circumference times the angle divided by 360, so get the arc length? Well, you do the same thing for the area of the sector except you take the AREA times the angle divided by 360.

    1 Answers · Science & Mathematics · 18/05/2008

  2. ...4 divided by 2 pi = 7/8 multiply the circle's area by 7/8 to get the sector 's area : 7/8 * pi * 81 cm^2 = 81 * 7 / 8 cm^2 to get the arc length, consider the circumference of a circle: 2 * pi * r 2 * pi * 9 cm = 18 * pi cm from the calculation up above, we know that...

    3 Answers · Science & Mathematics · 16/03/2011

  3. ...fraction of the semicircle that the sector takes up. Then...radius^2), since that's the area of the whole semicircle. That is, half of a circle's area . The other option is to divide the angle by 360, without...

    1 Answers · Science & Mathematics · 27/02/2017

  4. ...fraction of the semicircle that the sector takes up. Then...radius^2), since that's the area of the whole semicircle. That is, half of a circle's area . The other option is to divide the angle by 360, without...

    1 Answers · Education & Reference · 28/06/2009

  5. 30/360 = 1/12 of a complete circle. If the arc is 6pi, the ...72 pi. divide by pi to get the diameter: 72. The ...that, or 36. The area of the complete circle is... area of the sector is 1/12th...

    2 Answers · Science & Mathematics · 25/01/2008

  6. 3.14 times 5 to the second power=78.5 rounded to 79

    11 Answers · Science & Mathematics · 04/06/2008

  7. ...but the whole thing is 360. 135 / 360 = 3 / 8 = 0.375 So, find 3 / 8 of the total circle to find the sector area . 100 * (pi) * (3 / 8) = 37.5 * (pi) If you don't want to leave...

    2 Answers · Education & Reference · 02/08/2008

  8. Find the total area of the square and find the total area of the shaded secion and subtract the two areas to find the total area .

    2 Answers · Science & Mathematics · 11/01/2012

  9. we know the full length of a circle is nothing but its perimeter which is 2 x pi x r and also the internal angles total to 360 the length of an arc in this circle with theta as angle will be 2 x pi x r...

    1 Answers · Science & Mathematics · 12/06/2009

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