Pi, or 3.14159... Using the equation Circumference = pi * diameter.
pi or 3.14159265...
It is: circumference/diameter = pi
Diameters don't have "circumference." If you want the circumference of a circle with diameter 18 in, then it is just pi*d = 18pi inches.
You can do an experiment on several circles of different diameters.
Infinitely many. Each point on the circumference of a semicircle can be one end of a diameter and there are infinitely many points in a line segment of any length.
pi or 3.14159265...
Pi (3.1415)
Their circumferences are in the same ratio as their diameters.
7
It is: circumference/diameter = pi
circumference = 2 x pi x radius which is the same as pi x diameter so the answer is pi.
Diameters don't have "circumference." If you want the circumference of a circle with diameter 18 in, then it is just pi*d = 18pi inches.
You can do an experiment on several circles of different diameters.
Infinitely many. Each point on the circumference of a semicircle can be one end of a diameter and there are infinitely many points in a line segment of any length.
Draw two diameters of the circle and join the points where they meet the circumference.
The circumference. Although it isn't exactly 3. It is actually pi (3.14159265...) Which goes on and on forever.
There are infinite amount of diameters.