Asked by mason
c=pie d
c is circumference d is diameter. the circumference is 12
i forgot how to do this if you could explain how you got it would be great
also the
c is circumference d is diameter. the circumference is 12
i forgot how to do this if you could explain how you got it would be great
also the
Answers
Answered by
Reiny
c= π d , first of all pi is the usual spelling of π, pie is one of my favourite desserts
Most calculators have the constant π built in as one of the functions
In the "olden days" it was common to use 22/7 as an approximation, but since the early 1970's
we can rely on calculators to give us a more accurate value.
So in your case, you know d = 12
so the circumference = 12π or appr 37.699
if you use 22/7 you get 37.714, notice the loss of accuracy.
On my calculator I pressed:
12
x
π
=
to get my answer.
Most calculators have the constant π built in as one of the functions
In the "olden days" it was common to use 22/7 as an approximation, but since the early 1970's
we can rely on calculators to give us a more accurate value.
So in your case, you know d = 12
so the circumference = 12π or appr 37.699
if you use 22/7 you get 37.714, notice the loss of accuracy.
On my calculator I pressed:
12
x
π
=
to get my answer.
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