document.write( "Question 1105622: If the cost of making a leather ball is Rs. 431.20 at Rs. 17.50 per square cm. Let us write by calculating the length of diameter of the ball. \n" ); document.write( "
Algebra.Com's Answer #720502 by stanbon(75887)\"\" \"About 
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If the cost of making a leather ball is Rs. 431.20 at Rs. 17.50 per square cm. Let us write by calculating the length of diameter of the ball.
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\n" ); document.write( "Number of square centimeters = 431.2/17.5 = 24.64
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\n" ); document.write( "Surface Area = 4*pi*r^2
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\n" ); document.write( "Solve for \"r\"\":
\n" ); document.write( "4pi*r^2 = 24.64
\n" ); document.write( "r = 1.96 cm
\n" ); document.write( "Ans: Diameter = 2*1.96 = 3.92 cm
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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