You need to be more specific.
All I can tell you for now is that there are 2pi radians in a circle.
The unit of radius used to measure the size of a circle is typically in units of length, such as inches, centimeters, or meters.
A barometer is an instrument used to measure atmospheric pressure. A circle does not have a barometer!
Radian is the unit used to measure distances around a circle. It is defined as the angle subtended at the center of a circle by an arc equal in length to the radius of the circle.
A protractor can be used to measure an angle. An angle is basically part of a circle. A complete circle is 360 degrees. A right-angle is 90 degrees, half a circle is 180 degrees, and so on.
The unit of measure used for angles and arcs is called degrees. A full circle is divided into 360 degrees. Alternatively, radians can also be used as a unit of measure, where a full circle is equivalent to 2π radians.
The measure from the center of a circle to its edge is the radius.
A circle that can measure percents.
A circle is defined by only one measure. You cannot have a 30 inch by 60 inch circle!A circle is defined by only one measure. You cannot have a 30 inch by 60 inch circle!A circle is defined by only one measure. You cannot have a 30 inch by 60 inch circle!A circle is defined by only one measure. You cannot have a 30 inch by 60 inch circle!
Degrees are used to measure the arc of a circle. A full circle is 360 degrees, and a half circle 180. so 9 degrees would be 1/40th of a complete circle.
It does not measure anything. It is a two dimentional figure equivelent to half of a circle.
If you measure the middle of the circle and then times it by 3
the amount of space inside a circle