Question

# Here’s a quick one for you. So I constructed a pie chart and then I was asked, if I had to construct the pie

graph by hand how would I find the angle for each section. Now I know the center is 360 degrees so if I did it based on the percentages that excel created when I plugged in the numbers I believe I would say take (42/100 x 360) = 140.4 etc. when doing it this way it comes out to 360 but is there something I’m missing in finding out the angles (i.e. some algebraic formula for coming up with the angles)? I’ll attach what I gave her which she said was fine and then she asked the other question.

Answer:

Consider the data shown in below table:

Eye color

Brown

Blue

Green

Gray Number of student

11

10

4

1

Total= 11 +10 +4 +1 =26 To find the angle measure of each section, write each eye color…

Math