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  1. ... area that is one-sixth the area of a full circle . Area of circle : A = Pi*r^2 Area of sector : S = A /6 = (Pi/6)r^2 solve the last equation for r: r = sqrt...

    4 Answers · Science & Mathematics · 23/09/2015

  2. ... by two radii of a circle and the arc the two radii subtend. The arc of the circle is equal in ... each r,the are of sector is simply area of entire circle times x/360...

    2 Answers · Science & Mathematics · 19/05/2011

  3. The clock face is 360degrees giving: 1min = 6degress or 1/60 of the area 1hr = 30degress + 0.5degress(each minute after the hour) or 1/12 + 1/720 per minute Knowing A =pi*r^2 for the whole area and: r for the minute hand is 8.4cm r for the hour...

    1 Answers · Science & Mathematics · 05/11/2013

  4. In general, to do area of sector problems, you want to find the total area of the circle and then find only the area of that...can be found by the formula A = pi*r^2. Now, what you...

    7 Answers · Science & Mathematics · 13/01/2009

  5. set up simultaneous equations 0.5 X R X R X sector angle = 3 2R + (R X Sector Angle) = 7 solve for R

    5 Answers · Science & Mathematics · 08/09/2007

  6. first of all, "theata" is spelled "theta" anyway...and radius R so what you are saying is that A = 1 / TR, this is not the correct formula in actuality, A ...

    1 Answers · Science & Mathematics · 18/06/2008

  7. The area of a sector given the radius of the sector and the angle θ (in radians) is...2. Since θ = 195° = 13π/12 radians and r = 45, the area of the sector is: A = (1/2)θr^2 = (1/2)(13π/12)(45)^2 = 8775π/8 in^2. I hope this ...

    3 Answers · Science & Mathematics · 09/09/2010

  8. ...angle, not length. What you have is an arc that subtends an angle of 105°. Let θ be the subtended angle in radians. θ = 1.832595715 r = 18 cm area = r²(θ-sinθ)/2 = 18²(1.832595715-sin(1.832595715))/2 = 324(1.832595715...

    1 Answers · Science & Mathematics · 12/04/2009

  9. ...now instead of finding the area of the whole pizza, you will only find the area of the 1 slice. since your radius is 5 cm then you need to take the area formula for a circle and plug the values you have A = Pi * r^2 for your...

    3 Answers · Science & Mathematics · 13/08/2011

  10. ...3) so you multiply your area (12π) by 3 to get the total area of the circle Area of circle equals 12π x 3 = 36π now you know from elementary school that a circle 's area is πr^2 so πr^2=36π divide both sides by π...

    4 Answers · Science & Mathematics · 15/11/2010

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