4 * pi = 12.566370614359172953850573533118
But just round it off to 12.57 unless otherwise directed.
pi = 3.142... It is a mathematical constant sometimes approximated as 22/7 but if your calculator has a pi function, use it. On my calculator i would type (4) (*) (pi) (=)
Pi looks like a squiggly line ~ with two curved lines beneath it, if you are not sure what it is.
A circle with a 4-foot diameter has a circumference of about 12.57 feet.
If the diameter of a circle is 69mm then the circumference is: 216.8mm (diameter x pi = circumference).
Take "pi" times the diameter of the circle. Pi = 3.14159 (ALWAYS) If circle has a diameter of 10cm, circumference 31.41cm If circle has a radius of 2inches, the circumference is 12.57 inches. (radius = 2, diameter = 4)
circumference formula is pi(diameter) diameter is 2(radius) radis=4; diameter=2(4)=8 pi(8)=circumference of the circle...this is the EXACT answer plug it into a calculator and you will get 25.1327412287 your welcome ;)
Circle's circumference: 4 times pi = 12.57 km rounded to 2 decimal places
Given a circle with a diameter of 4, the circumference is: 12.6 (diameter x Pi = circumference).
If a circle has a diameter of 4 bananas, it's circumference is 12.564 bananas
The circumference of a 4-inch diameter circle is: about 12.57 inches. (diameter x pi = circumference).
The circumference of the circle that has a diameter of 4 feet is: 12.57 feet
A circle with a 4-foot diameter has a circumference of about 12.57 feet.
The circumference of a circle is the diameter times pi (3.141) so therefore a 4 meter circumference circle has a diameter of 1.273 m E.g. 4 / 3.141 = 1.273
The circumference of a circle is the distance around the outside of the circle. It could be called the perimeter of the circle. The circumference of a circle can be found by multiplying pi ( n = 3.14 ) by the diameter of the circle. If a circle has a diameter of 4, its circumference is 3.14*4=12.56. If You know the radius, the diameter is twice as large.
To find the diameter divide the circumference of the circle by pi
The circumference of a 4 foot circle is: 12.57 feet(diameter x pi = circumference).
the equation for the circumference of a circle is 2*radius*pi, or since the radius is half of the diameter 2*radius=diameter, we can simplify the equation to the circumference of a circle=diameter*pi
Circumference of circle: 4 times pi in inches
If the diameter of a circle is 4 inches the circumference will be about 12.57 inches. (d x Pi = C)