document.write( "Question 332997: How do i draw pie charts? \n" ); document.write( "
Algebra.Com's Answer #238634 by josmiceli(19441)\"\" \"About 
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You will need a compass to draw the circle. The
\n" ); document.write( "compass automatically gives you the center of
\n" ); document.write( "the circle. It is where the point of the compass
\n" ); document.write( "sticks into the paper. Once you have drawn a circle,
\n" ); document.write( "you will need a protractor that has angles marked
\n" ); document.write( "off on it. It looks like a half circle with 0 degrees
\n" ); document.write( "to 180 degrees marked off in 1 degree units.
\n" ); document.write( " Now you need to look at the data that you want to
\n" ); document.write( "put into a pie chart. Only certain kinds of data
\n" ); document.write( "can be arranged into a pie chart. All the separate data
\n" ); document.write( "items have to add up to 100% of something.
\n" ); document.write( " An example is a person's budget of spending and saving
\n" ); document.write( "from monthly income.
\n" ); document.write( "For example:
\n" ); document.write( "food: $300/month
\n" ); document.write( "rent: $1000/month
\n" ); document.write( "entertainment: $150/month
\n" ); document.write( "savings: $50/month
\n" ); document.write( "If this adds up to monthly income, then it's 100% of income
\n" ); document.write( "and can be put into a pie chart.
\n" ); document.write( "The way to do this is to turn the data into pie slices with this
\n" ); document.write( "formulas:
\n" ); document.write( "(food amount)/(total budget) x 360 degrees
\n" ); document.write( "(rent amount)/(total budget) x 360 degrees
\n" ); document.write( "(entertainment)/(total budget) x 360 degrees
\n" ); document.write( "(savings)/(total budget) x 360 degrees
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\n" ); document.write( "What is the total budget?
\n" ); document.write( "300 + 1000 + 150 + 50 = 1500
\n" ); document.write( "so,
\n" ); document.write( "food: 300/1500 x 360 = 72 degrees
\n" ); document.write( "rent: 1000/1500 x 360 = 240 degrees
\n" ); document.write( "entertainment: 150/1500 x 360 = 36 degrees
\n" ); document.write( "savings: 50/150 x 360 = 12 degrees
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\n" ); document.write( "These are the pie slices and they should add up to a full pie,
\n" ); document.write( "or 360 degrees:
\n" ); document.write( "72 + 240 + 36 + 12 = 360 degrees
\n" ); document.write( "Now draw a straight line from the center of the circle to
\n" ); document.write( "the outer edge. Use the protractor to create 72 degrees
\n" ); document.write( "from this line and draw the line at 72 degrees.
\n" ); document.write( "Now go around the circle, marking off 240, 36, and 12
\n" ); document.write( "degrees to make up a full circle. Label the pie slices
\n" ); document.write( "72 degrees: food
\n" ); document.write( "240 degrees: rent
\n" ); document.write( "and so on
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