The formula for circumference is

.
To express the circumference exactly, plug the diameter in for

and put the

symbol in front of it. Don't multiply. This expresses the exact circumference.
Say you have the diameter of 17.
You can express the circumference with 17

.
Answer:
René Descartes
Step-by-step explanation:
René Descartes ( March 31, 1596 – February 11, 1650), also known as Cartesius, was a noted French philosopher, mathematician, and scientist. Dubbed the "Founder of Modern Philosophy" and the " Father of Modern Mathematics," he ranks as one of the most important and influential thinkers of modern times.
The 6 cans, containing 16 oz each is the better buy.
16x6= 96 oz
96 oz converted to liters, is 2.83906 liters.
So it's better to buy the cans by .83906
The length of the third side is a-2. :))
36
/ \
18. 2
/ \
2. 9
/ \
3. 3
I wrote it on a phone, so it'll look different from a PC.