Question

Part

The number 3.14 is a rounded value of the mathematical quantity . If you replace 3.14 with 1, what is the exact formula for the circumference in
terms of the diameter, d, and in terms of the radius, r?
B IV x x
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Answer 1

C = 2(3.14)r

C = (3.14)d

Explanation:

Circumference in terms of radius:

`c \: = 2\pi \: r`

So replacing pi with 3.14 you would get 2(3.14)r

Circumference in terms of diameter:

`c = d\pi`

So replacing pi with 3.14 you would get d(3.14)