Pi is the relationship between a circle's diameter and its circumference. This relationship is always the same, and it's always pi. Pi is an irrational number, which means its decimals go on forever, but it is approximately 3.14.

What is pi?

A
an irrational number

B
the relationship between a circle’s diameter and its circumference

C
approximately 3.14

D
all of the above

1 answer

D) all of the above