The following table shows the number of medals won in the 2008 Olympics for swimming by the top five countries. Country Number of Medals USA 31 Australia 20 Great Britain 6 China 6 France 6 How many degrees will the USA section be in a circle graph? 31° 45° 162° 184°
Of the total 31 + 20 + 6 + 6 + 6 = 69 medals, the USA won 31 of them. 31/69 as a percentage is about 45%. Since there are 360° in a full circle, 45% of that is 0.45 * 360 = 162°.
