You multiply 3.14 by the diameter or 2 times the radius
for area you do pi or 3.14*radius squared
Circumference = 2(pi)r
Area = (pi)r^2
r = 5
5 * 2 = 10
Circumference = 10π
5 * 5 = 25
Area = 25π
Using 3.14 as pi substitute:
5 * 3.14 = 15.7
15.7 * 2 = 31.4
Circumference = 31.4
5 * 5 = 25
25 * 3.14 = 78.5
Area = 78.5
7,9,10 in that order in the y portion on the chart are the answers then use the x and y answers as graphing points for example the first one your going to graph is (3,7)
The correct answer is d, 2
