document.write( "Question 283082: Four pennies of diameter d are placed with their centers on the four corners of a d x d square. the percentage of the area of the square covered by the pennies is\r
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document.write( "A 60 to 70 b 70 to 80 c 80 to 90 d 90 to 100 e none of these
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Algebra.Com's Answer #205491 by richwmiller(17219) You can put this solution on YOUR website! we have 4*1/4 =1 penny \n" ); document.write( "area of a penny pi*(d/2)^2=3.14*d^2/4=3.14/4*d^2\r \n" ); document.write( "\n" ); document.write( "area of the square is d^2 \n" ); document.write( "3.14/4 *100 is the percentage of the square covered by the pennies \n" ); document.write( "3.14/4 *100=78.5 \n" ); document.write( "so b) 70-80 \n" ); document.write( " |