Annual Sources of Radiation Exposure Pie Chart Name: Date: Pie charts show data in the form of sections, or parts, of a whole. The pie chart example shows three parts (50%, 26% and 24%) that add up to the whole (100%). In 2009 the National Council on Radiation Protection and Measurements (NCRP) examined Americans' annual exposure to radiation. Hypothesize the amount of natural and man-made radiation Americans were exposed to by dividing the pie chart into two parts. Label each part according to its percentage of the whole. Make sure the two slices total 100%. Color each part (and the corresponding box in the legend) with a different color or pattern. Pie Chart Example f Pie Chart Legend Natural (Background) Radiation Man-Made Radiation ------- |