document.write( "Question 1086143: I'm running a pizza business and are circular in shape,with the diameter of 23cm so if charge 5c per cm squired how much would it cost in rands? \n" ); document.write( "

Algebra.Com's Answer #700311 by Fombitz(32388) $\"\"$ $\"About$

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Use the area of a circle,
\n" ); document.write( " $\"A=pi%28D%2F2%29%5E2=%28pi%2F4%29D%5E2=%28pi%2F4%29%2823%29%5E2\"$
\n" ); document.write( "So the cost would be that cost per area multiplied by the area,
\n" ); document.write( " $\"C=0.05A\"$
\n" ); document.write( " $\"C=%281%2F20%29%28pi%2F4%29%28529%29\"$
\n" ); document.write( " $\"C=%28529%2F80%29pi\"$
\n" ); document.write( "I'm assuming there are 100 cents in a rand.
\n" ); document.write( "C is in units of rands.
\n" ); document.write( "Work out the final answer with a calculator.
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