Circumference is analogous to perimeter, it's just a different name. Circumference can also be applied to ellipses and other curved figures.
Circumfrences are only for circles.
Pi times the diameter of a circle gives its circumference.
Circumference is only used for circles. Perimeter is for every other 2D shape.
A square can't have a circumference. That's only for circles squares have area, volume, or perimeter.
only if the circles have a different circumference
Circumference of any circle = 2*pi*radius or pi*diameter
circumference is only in a circle. Circumference only applies to circles, ellipses, or other round objects. If you want to find the "perimeter," add up all three sides.
pi is an irrational number at 3.141592.... ( recur to infinity and decimals in no regular order. Let me tell you a story!!!! It was found by the 'Ancient Civilisations' that when a donkey is used to drive up water from well, it was tethered to a rope/halter, the radius. It walked round the well head tied to the halter. in a big circle, the circumference. It was found by the ancients, that twice the radius, the diamter, has a direct proportion to the circumference. It didn't how big/small the circumference was, compared to the radius/diameter the proportion always remained the same at 3.141592.... (pi). So the ancints constructed an equation. C is directly proportional to diameter ,d, This proportion is always constant hence a 'k' for constancy is inserted. C = kd or k = C/d This constant 'k' was given the name 'pi', which is the lower case Classical Greek letter 'p'. and stands for proportion. So ther you have it!!!!!
To work out the diameter of a circle with only the circumference, you need to divide the circumference by pi ≈ 3.1416. 1/pi ≈ 0.31831Pi">PiPi is a so far unique number with an endless number of decimals. It is heavily related to math tied to circles and is used in a number of equations involving circles.
Oh, dude, you're really making me do math right now? Fine, fine. The circumference of the UK is approximately 2,800 miles. But seriously, who measures countries in circles anyway? Like, just enjoy your tea and biscuits and let the UK do its thing.
The word "circumference" is used for circles and circular shapes, such as ellipses and ovals. For other plane shapes, the word used is perimeter.
Divide by pi and then divide by 2