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The diameter of a circle is 69 yards. The circle's circumference is about ___ yards. Use 3.14 for π.

User Changa
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The circumference of circle is ,


C=2\Pi r

where r is the radius of circle.

The diamteter of circle is , 69 yards

Convert into radius,


d=2r
69=2r
r=(69)/(2)

Substitute the radius in the circumference formula.


C=2*3.14*(69)/(2)
C=3.14*69
C=216.66\text{ yards.}

Hence the circumference of circle is 216.66 yards.

User Hennes
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