Circumference is the distance around the boundary of a circle from "summary" of Maths Mate – 6 NEW by Madhubun
The circumference of a circle is the distance around its boundary. To calculate the circumference of a circle, you need to know the radius or diameter of the circle. The radius is the distance from the center of the circle to any point on the boundary, while the diameter is the distance across the circle passing through the center. The formula to find the circumference of a circle using the radius is 2 times pi times the radius, which can be written as C = 2 x π x r. Here, π is a constant value approximately equal to 3.14. So, to find the circumference, you simply need to multiply 2, π, and the radius of the circle. Similarly, if you know the diameter of the circle instead of the radius, you can use a slightly different formula to find the circumference...
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