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 Sujet: circle circumference
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 A circle of circumference 4*pi*r 2018-03-19 Ankith pose la question :If the circumference of a circle is 4*pi*r, what is its area? i) 4*pi*r^2 ii) 2*pi*r^2 iii)3*pi*r^2 iv) pi*r^2Penny Nom lui répond. A circle formed from bending a wire 2016-10-16 Deszaree pose la question :The same piece of a wire is bent to form a circle calculate: a, the radius of the circle b, the area of the circlePenny Nom lui répond. The area of a circle in terms of the circumference 2014-11-04 Sarah pose la question :How do you find the area of a circle if you already have the circumference? There was one answer to this question already but it didn't make sense to me, because they rounded up pi which you can't do so the answer is incorrect. thanksPenny Nom lui répond. A reel of cotton thread 2012-06-05 Grace pose la question :91 meters of cotton goes round the cotton reel. About how many times does the cotton go round the reel? Give your answer to the nearest ten. (The Diameter of the cylinder is 3cm)Penny Nom lui répond.

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