document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173944>Question 1173944</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The area of a circle is proportional to the square of its radius. If the area of a circle whose diameter is 5cm is 19.635 cm^2. What is the constant of proportionality? What is the equation that describes the relation? </SPAN>\n" );
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document.write( "Area of a circle is proportional to the square of its radius<BR>\n" );
document.write( "C = kR<BR>\n" );
document.write( "19.635 = k 2.5^2<BR>\n" );
document.write( "k = 19.635/6.25<BR>\n" );
document.write( "k = 3.14<BR>\n" );
document.write( "Area of Circle = 3.14 x R^2<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
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