18.84
Pi times radius squared.
25.1
two times the radius times 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.
8 divided by (2*pi) = a radius of 1.273239545 linear units
the circumfrence of a circle is pi times it's radius squared.
22*pi
Pi times radius squared.
25.1
radius = circumference/(2*pi)
The circumference is about 31.415 units.
two times the radius times pi
The circumference (c) of a circle = 2πr (where r = radius). Therefore if you know the circumference, the radius (r) = c/2π.
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.
8 divided by (2*pi) = a radius of 1.273239545 linear units
Circumference of a circle = 2*pi*radius or pi*diameter
Circumfrence=diameter X 3.14 (diameter=2 X radius)