document.write( "Question 312031: A circle has an area of 25 pi and is divided into 8 congruent regions. What is the perimeter of one of these regions?
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document.write( "a) 10 - 25pi
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document.write( "b) 10 + 5/8pi
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document.write( "c) 10 + 5/4pi
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document.write( "d) 10 + 5pi
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document.write( "e) 10 + 25pi\r
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document.write( "If possible can you please explain how you came up with the answer? \n" );
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Algebra.Com's Answer #223099 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! The perimeter of the region is made up of the circular portion plus two radii (think of a pie piece). You can calculate the circular portion because you know for the whole circle that the entire circular portion would be the circumference. \n" ); document.write( " \n" ); document.write( "If the circle is divided into 8 parts, then the circular portion of the perimeter of each pie slice would be \n" ); document.write( "Then adding the two radii, the perimeter would be, \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Now finding R. \n" ); document.write( "You know the area of the circle, the equation for the area is, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Now go back and plug this value into the perimeter equation, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "c) is the correct answer. \n" ); document.write( " |