How To Calculate Circumference

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How To Calculate Circumference

John, a maths teacher, shows viewers how to calculate the circumference of a circle. He offers examples in this tutorial and helps you work out the problem of figuring out the distance around the edge of a circle.

The circumference is defined as pi multiplied by d, which is the diameter of the circle. This is equal to 2 multiplied by r multiplied by pi. Because the radius is 2.

2 times the radius equals the diameter.

So we can use either this or this to work out the circumference. let's look at an example. Let's say we have a circle with a radius of 5 centimeters.

We can use this and this to say the circumference is equal to 2 multiplied by pi multiplied by 5. This, we can simplify down to 10 pi, because we have 2 multiplied by 5 multiplied by pi. Now pi is an irrational number.

We can leave it in this form and this is correct. However, if you would like a shortened decimal answer, this is approximately 10 multiplied by 3.14.