document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205081>Question 1205081</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A region of a country is represented on a map of scale 1:25,000 by an a area of 11.5cm². Find the area of the region to the nearest hectare? </SPAN>\n" );
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document.write( "The linear scale is 1:25,000<BR>\n" );
document.write( "It means 1 cm on paper represents 25,000 cm in the real world.\r<BR>\n" );
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document.write( "25000 cm = 25000/100 = 250 m<BR>\n" );
document.write( "We divide by 100 since 100 cm = 1 m.\r<BR>\n" );
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document.write( "We can rewrite that linear scale to say<BR>\n" );
document.write( "1 cm : 250 m\r<BR>\n" );
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document.write( "Square each part of the linear scale to get the area scale.<BR>\n" );
document.write( "1^2 = 1<BR>\n" );
document.write( "250^2 = 62,500\r<BR>\n" );
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document.write( "1 square cm on paper corresponds to 62,500 square meters in the real world.\r<BR>\n" );
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document.write( "11.5 square centimeters on paper corresponds to 11.5*62500 = 718,750 square meters in the real world.\r<BR>\n" );
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document.write( "1 hectare is defined to be a square of side 100 meters.<BR>\n" );
document.write( "Meaning that 1 hectare = (100)^2 = 10,000 square meters\r<BR>\n" );
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document.write( "Divide by 10,000 to convert from square meters to hectares. <BR>\n" );
document.write( "(718,750)/(10,000) = 71.875 hectares\r<BR>\n" );
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document.write( "That will then round to <font color=red>72 hectares</font><BR>\n" );
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