1. Circle Graph warm up
Draw a circle.
How many degrees are in a circle?
Split the circle in half.
How many degrees are in half a circle?
Split the circle into quarters.
How many degrees are in each quarter?
Split the circle into eighths.
How many degrees are in each eighth?
360°
180°
45°
90°
90°
180°
180°
45°

2. Example # 1: Carl has an orchard cotaining 24 apple trees, 20 peach trees, 16 cherry trees, 12 apricot trees, and 8 plum trees. Represent Carl’s data using a circle graph.
Step 1: Find the total # of trees.__________________
Step 2: Fill in the chart. 80
Tree
Number
Percent
Angle
Apple 24
24/ 80= 30%
(.30)(360) = 108°
Peach
Cherry
Apricot
Plum 20
20/ 80= 25%
(.25)(360) = 90° 16
16/ 80= 20%
(.20)(360) = 72° 12
12/ 80= 15%
(.15)(360) = 54° 8
8/ 80= 10%
(.10)(360) = 36°

3. Tree
Number
Percent
Angle
Apple 24
30%
108°
Peach 20
25%
90°
Cherry 16
20%
72°
Apricot 12
15%
54°
Plum 8
10%
36°
Plum and Apricot add up to 90°.
Apple and Cherry add up to 180°.
Cherry
20%
Peach
25%
Plum
10%
Apple
30%
Apricot
15%