51) Rewrite the formula for the circumference of a circle C=2 /pi "r" in terms of its diameter "d". Please show your working :)

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NoDachi · Answer 1 · 2017-02-10T02:07:29+0000

The circumference of a circle=2
$\pi$ r
We know that diameter is double the radius, and therefore can be written as d=2r
Circumference of a circle in terms of diameter is C=
$\pi$ d
The 2r cancels out

51) Rewrite the formula for the circumference of a circle C=2 /pi "r" in terms of its diameter "d". Please show your working :)

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