26.7 mm
A circle with a radius of 4 units has a circumference of 25.13 units.
If you have the radius, then area = pi*r2 which you then round to the nearest hundredth. If you do not know the radius but do know the diameter or circumference, you can calculate the radius. Otherwise you need to measure it.
Radius = 130.51 mm approx.
circumference is the distance around the circle, so it sounds as though you are stating the circumference in your original question; 66 inches.
Circumference of a circle that is 8 inches of what? 8 inches in diameter? 8 inches in radius? Please clarify your question next time.If it's 8 inches in diameter, the circumference would be as follows:Circumference of a circle = pi (sorry but I don't know how to type the symbol) x diameter = 3.14 x diameter (if you round pi)Therefore if diameter=8, circumference = 3.14 x 8 = 25.12 inches.If the 8 inches is the radius, you multiply that by 2 to get the diameter and use the same formula to find the circumference. (Diameter = 8 x 2 = 16 inches, Circumference = 3.14 x 16 = 50.24 inches.)
A circle with a radius of 4 units has a circumference of 25.13 units.
30.46 but round it to the nearest decimal and it will be 30.50
47.25
It depends on what the "32in" refers to: circumference, diameter, radius.
Circumference of a circle = 2*pi*radius or pi*diameter Circumference = 21.67698931 or 21.7 meters to the nearest tenth
The circumference of a circle with radius of 7 km is 44.0 km (to the nearest tenth), and the area of a circle with radius of 7 km is 153.9 km (to the nearest tenth).C = 2 pi RA = pi R2
-- Multiply (pi) by (diameter of circle)OR-- Multiply (pi) by (2 times radius of circle)-- Then round the product to the nearest whole number.
If you have the radius, then area = pi*r2 which you then round to the nearest hundredth. If you do not know the radius but do know the diameter or circumference, you can calculate the radius. Otherwise you need to measure it.
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
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?"
Circumference of a circle = 2*pi*radius or diameter*pi
Circumference = pi * 2 * r C = 3.14 * 2 * 47 = 295.16