A circle has no vertices around it
"Diameter" is the distance all the way across the circle, through the center."Radius" is 1/2 of the diameter ... the distance from the center to the curvy part of the circle."Circumference" is the distance all the way aroundthe circle.
Given the diameter of the circle, multiply it by π (approx 3.14159).
Find the area of both circles (A = πr2) and subtract the area of the larger circle from that of the smaller circle inside it.
You need to measure it with something flexible, like a string.If you know for sure it is a circle, it would be easier to measure the diameter, then multiply by pi.
The perimeter of a cirlcle is its circumference which is: 2*pi*radius or diameter*pi
d * pi or 2 * r * pi Where d is diameter and r is radius and pi = 3.14159
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The area of a circle is given by the formula A=pi x r2 Where A is the area of the circle, pi is a constant approximately equal to 3.1415, and r is the radius of the circle. So, to find the area of a circle with a radius of 5cm you would first square the radius -- 25 cm2. Then times by pi. So the answer would be 25pi cm2.
it is helpful to determining a cirlcle
A circle has no vertices around it
Peter, James, & John
The diameter is 6 units.
"Diameter" is the distance all the way across the circle, through the center."Radius" is 1/2 of the diameter ... the distance from the center to the curvy part of the circle."Circumference" is the distance all the way aroundthe circle.
cirlcle spirals lol im only 11
Usually it is the capital of that city or state.