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  1. =========== I'm not sure why you need a calculator to solve this. Is there more to the question or...which preceded it? Simple answer: A sector of 90 degrees or π/2 radians is...

    1 Answers · Science & Mathematics · 11/07/2013

  2. ...it's 2rt5/sq.rt pi, or use a calculator . It's a messy answer. :( At any rate, we...60 degrees is 1/6 of a circle. Use the formulas to find area and perimeter of a whole circle with r=8cm...

    3 Answers · Science & Mathematics · 08/09/2008

  3. I don't have a calculator with me just now, but this should work : If you use the formula: length of arc = angle/360 * pi * diameter Re...radius! Then use the formula : area = angle/360 * pi * r^2 ( using the...

    2 Answers · Education & Reference · 10/03/2011

  4. ...opposite the angle AOB and a =5, b=5 Therefore plug...the answer you got into the calculator cos(theta)=7/25 theta = arccos... c)The formula for the area of the sector is given by: A ...

    2 Answers · Science & Mathematics · 27/04/2008

  5. ...region = Area of the sector - Area of the triangle = 113.097 - 72 = 41...: Wow, you have a bike? I have always ... the value directly from the calculator . By the way, are you...

    2 Answers · Science & Mathematics · 05/06/2009

  6. ... that 36=25+25-50cos(AOB) => cos(AOB)=7/25 Use a calculator , arccos(7/25)=1.287 The area is 1.287/(2pi)*pi*25=16.... Area of triangle is 12. So the shaded area is 16-12=4.

    1 Answers · Science & Mathematics · 27/04/2008

  7. .... Making a chart of SOME θ and r values that produce a sector area of ≐ 26 m²... Given a value for θº, r would be ... θ...

    3 Answers · Science & Mathematics · 22/11/2010

  8. ... could always start by doing a ratio. 2*pi radians creates an area of pi * r^2 1/6 radian is an area of ...one or you could put it in your calculator and get it down to 1 or 2 decimals...

    3 Answers · Science & Mathematics · 08/09/2013

  9. ... the area of the triangle = twice the area of the sector = 2 (½ r² θ) = r²...tan θ = 2θ You can get the solution from a graph, or from a calculator . Put in a value for θ (in radian mode), and...

    2 Answers · Education & Reference · 24/01/2011

  10. A =Pi r^2 therefore A =100Pi m^2 but only 135 degrees are shaded therefore 135/360 of the circle is shaded. A =(135/360)(100Pi) sorry did not have a calculator .

    1 Answers · Science & Mathematics · 30/10/2007

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