How to Find the Circumference of a Circle

To explain how to find the circumference of a circle i will show it in steps making it easier to understand it.   

Step 1: Draw a circle and when you do make a triangle within the circle to the have point making this your radius.

Step 2: we are going to calculated the the height and base of the triangle that we have drawn into our circle

Step 3: Could also be in step 2 but this is find the formula of what were trying to do which is this: B*H (base times hight) over 2 

Step 4: We change the B within the formula making it C (circumference) because we are looking for the circumference not the base

Step 5: We notice that Diameter times pie=c So we could also change formula once more making it now: D*pie*r over two. The same exact formula just a little less loose and we also gained a little bit of knowledge knowing what times what equals the circumference 

Step 6: Looking back at step five we see that the diameter is made up of radius times radius (across the circle) then we write this in as r(2)

Step 7: The formula looks like this (the finalized look until we eliminate the two's) 2r*pie*r over 2

as i mentioned above the dimeter is now replaced with 2r

Step 8: We eliminated both of the twos leaving us with r*pie*r 

Step 9: Notice that there are 2 r's so we put both of them together making it r(2)

Step 10: Final step we take the what we got, which is r2*pie and we flip it around because thats the mathematical way its written, but mathematically look at it it really does not matter, giving us our final formula:

Pie*r2