  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: circle circumference   start over

4 items are filed under this topic.    Page1/1            A circle of circumference 4*pi*r 2018-03-19 From Ankith: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^2Answered by Penny Nom.     A circle formed from bending a wire 2016-10-16 From Deszaree:The same piece of a wire is bent to form a circle calculate: a, the radius of the circle b, the area of the circleAnswered by Penny Nom.     The area of a circle in terms of the circumference 2014-11-04 From Sarah: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. thanksAnswered by Penny Nom.     A reel of cotton thread 2012-06-05 From Grace: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)Answered by Penny Nom.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français