Circumference of circle=<span>2πr</span>
Where <span>r=radius</span>
<span>2r=d</span>
<span>d=diameter</span>
So,<span>2πr=πd</span>
Note,<span>π=<span>227</span></span>
In this statement,<span>c=ci</span><span>rcumference</span>
<span>→c=πd</span>
<span>→c=π<span>(30)</span></span>
<span>→c=π30=<span>227</span><span>(30)</span></span>
<span>→c=<span>6607</span>=94.28...</span>
Circumference is <span>94.28...cm<span>s</span></span>
