Multiply the diameter by (pi), or the radius by (2 pi).
If you have a drawing of the circle, and the center is marked, you can measure
the radius and the diameter. Just lay your ruler across the circle, and make sure
that it touches the center.
If the center isn't marked, then it won't be that easy.
congruent, convex, cirlce, circumfrence
Multiply pi by the diameter.
Surface Area r2x 3.14159(pi)x 2 + (why times 2, well theres 2 circles) Circumfrence X Hieght Area of cirlce + Area of Rectangle around = Surface area
Area of a circle = pi*radius2
The circumference of a circle is (diameter) multiplied by (pi).
congruent, convex, cirlce, circumfrence
Multiply pi by the diameter.
divide by pi which is 3.1415927 and on and on
Surface Area r2x 3.14159(pi)x 2 + (why times 2, well theres 2 circles) Circumfrence X Hieght Area of cirlce + Area of Rectangle around = Surface area
Area of a circle = pi*radius2
The circumference of a circle is (diameter) multiplied by (pi).
The circumfrence is like a perimeter. It is the area around a circle. You can find the circumfrence of a circle by using this formula. Pi x R2 or Pi times the radius squared.
i have tried searching that too but it was unfound i hope yu find your answeeer!
Pi x Diameter = CircumferencePi = 3.14...
radius = circumference/(2*pi)
the circumfrence of a circle is pi times it's radius squared.
It depends on what information you have: radius, diameter, lengths of tangents from a point outside the circle, length of chord and its distance from the centre, etc. Also, the term is circumference, not circumfrence.