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. The formula to find the circumference using the diameter is π times the diameter, which can be written as C = π x d. In this formula, you just need to multiply π and the diameter of the circle.
Understanding the concept of circumference is essential in geometry as it helps in various calculations and measurements related to circles. It is also important in real-life applications such as calculating the distance around a circular track or the length of a circular wire.
By knowing the formulas and concepts related to circumference, you can easily solve problems and perform calculations involving circles. So, next time you come across a circle, remember that the circumference is the distance around its boundary and use the appropriate formula to find it.
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