Step-by-step explanation:
a pie chart is a circle with differently sized pizza slices designating how many or how much in every category in relation to the whole (the full circle).
a full circle = 360°.
the listed teachers together have obviously 200 students.
that means 200 is the whole, and correlates to 360° (everything takes the whole circle).
20 students for Michelle means then 20 of 200 :
20/200 = 1/10 = 360/10 = 36°
38 students for Rose Grace.
38/200 = 19/100 = 19×360/100 = 0.19 × 360 = 68.4°
28 students for Melanie.
28/200 = 7/50 = 7×360/50 = 7×36/5 = 50.4°
36 students for Joy.
36/200 = 9/50 = 9×360/50 = 9×36/5 = 64.8°
42 students for Josephine.
42/200 = 21/100 = 21×360/100 = 21×36/10 = 75.6°
36 students for Daisy.
36/200 = 9/50 = 9×360/50 = 9×36/5 = 64.8°
you need to draw a circle with the sectors having the listed degrees. of course, you round to the nearest full degree.
if done right, these sectors fill the whole circle.
