The same way as you round any other number or measurement.
The diameter of a circle or sphere is the length of a straight line that touches both sides and passes through the centre.
The circumference of a 24-inch round (diameter) circle is: 75.4 inches.
3.14 x 12.52 = 490.625 or round it up to 490.63 millimeters.
If 34 inches is the radius or diameter of the circle, (or circumference?), it needs to be stated in the question! What is meant by "round circle?"
diameter = circumference/pi = 12/pi inches
Radius is the distance from the centre of a circle to the outside The circumference of a circle is the distance round the outside of a circle
It is round and the circumference is 3.14 times the diameter.
A circle with a diameter of 11 inches has an area of 95.03 square inches.
Circumference of a circle = 2*pi*radius or diameter*pi
If the circumference of the circle is 2.5 inches then its diameter is 2.5/pi = 0.796 of an inch rounded up to 3 decimal places
You take the radius (or diameter). If radius you times it by two (since it is half of the Diameter) then times the answer by 3.14. If diameter, times the diameter by 3.14. then round the decimals.
Diameter of the circle: 31.4/pi = 10 miles rounded up