see the attached figure to better understand the problem
step 1
Measure 167 degrees (using a protractor) to represent the blue color (46%)
step 2
Measure 77 degrees (using a protractor) to represent the orange color (21%)
step 3
Measures 13 degrees (using a protractor) to represent the yellow color (13%)
step 4
Measures 51 degrees (using a protractor) to represent brown color and green color (51% each)