Pi is 3

Pi is a special number that helps us understand circles. When we look at a circle, we see a round shape with no corners. Pi helps us figure out how big a circle is and how to measure its different parts.

Imagine you have a cookie. If you take a string and go all the way around the cookie, the length of the string would be the same as the distance around the edge of the cookie. We call this distance the circumference of the circle. Pi helps us calculate the circumference.

Now, let's say you take a ruler and measure how wide the cookie is from one side to the other, passing through the center. We call this measurement the diameter of the circle. Pi also helps us find the diameter.

Pi is a very special number because it never ends and it goes on and on: 3.1415926535... and so on. But for now, let's keep it simple and say pi is just 3.

So, if we have a circle, and we know the diameter is 1, we can use pi to find the circumference. Since pi is roughly 3, we can multiply the diameter by 3 to find the circumference. So, the circumference would be 3.

Think of it like this: if the cookie is just big enough to touch four of your fingers when you hold it, then the distance around the edge of the cookie is three times the length of one finger.

Now, let's imagine another circle. This time, let's say the diameter is 6. Using pi, we can calculate the circumference. We know pi is roughly 3, so we multiply the diameter by pi (3) to get the circumference. In this case, 6 multiplied by 3 is 18. So, the circumference is 18.

To summarize, pi is a special number that helps us measure circles. We can use it to find the distance around the edge of a circle (circumference) and the distance from one side to the other passing through the center (diameter). For now, we can say pi is 3, which helps us do some basic calculations.