<PRE><B>Question 970128</B>
 Calculate the area of a sector of a circle with radius 4&amp;#8201;km that subtends an angle (5pi/8) Enter your answer in square kilometers? 
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Area of the circle:: pi*4^2 = 16pi 
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Proportion::
sector area/(5pi/8) = circle area/2pi
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sector area [5pi/8][16pi/2pi]
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Ans:: 5 km^2
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Cheers,
Stan H.
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