Circumference = Pi x diameter
Pi = 3.14159 so the circumference = 3.14159 x 1 =3.14159 inches
circumference/pi = diameter
7/8 inch circle has a diameter of 7/8 and a radius of 7/16=.4375 circumferance of a circle = 2*pi*radius = 2*3.14*.4375 =2.7475 or 7*pi/8
circumference = pi*100mm
If the diameter is known, don't bother measuring the circumference.Simply multiply the diameter by 'pi'.
circumference = pi*diameter so diameter = circumference/pi = 19.1 metres.
Exactly 1 inch!
Either pi times the diameter or pi times twice the radius (which is the diameter)
Circumference = (pi) x (diameter) = 14 pi = 43.9823 inches (rounded)
What is 27 X 3.14? 27 pi
Less than an inch.
Diameter of circle: 13/pi = 4.138 ft to 3 decimal places
I have a circle that measures 42" in diameter. I have to put fabric around that at a 2.5 to 1 fullness. What is the flat piece of fabric I need