C
28
= π
The diameter is equal to twice the radius.
C = 2πr
C = 2(14)π
C = 28π
C
28
= π
To find the range subtract from the biggest to the lowest, so it would be 86 - 13 which equals to 73.
Your lower or first quartile would be 42 and your upper or third quartile would be 74.
