![Q: Is it a coincidence that a circles circumference is the derivative of its area, as well as the volume of a sphere being the antiderivative of its surface area? What is Q: Is it a coincidence that a circles circumference is the derivative of its area, as well as the volume of a sphere being the antiderivative of its surface area? What is](https://www.askamathematician.com/wp-content/uploads/2013/02/circumference.jpg)
Q: Is it a coincidence that a circles circumference is the derivative of its area, as well as the volume of a sphere being the antiderivative of its surface area? What is
![the radius of the outer circumference of a cylindrical ring is 12 cm and the diameter of the cross section - Maths - Mensuration - 6728849 | Meritnation.com the radius of the outer circumference of a cylindrical ring is 12 cm and the diameter of the cross section - Maths - Mensuration - 6728849 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/4511409/2013_12_03_19_03_16/image274000744524939970.jpg)
the radius of the outer circumference of a cylindrical ring is 12 cm and the diameter of the cross section - Maths - Mensuration - 6728849 | Meritnation.com
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