Internal diameter.
An internal caliper gauge.
Circumference = 2*pi*r r(radius) * 2 = diameter So. assuming the bottle is fairly a circle, measure across the bottom to get the diameter and then divide that in half for the radius and use the circumference formula. Of course a bottle is not quite a perfect circle everywhere and you might need calculus to get a proper circumference. I am thinking vector calculus.
A meter rod may not fit cross-wise inside a breaker (whatever that is).
The radius of a circle is half the diameter.
Internal diameter.
Internal diameter.
An internal caliper gauge.
External diameter, internal diameter, and tooth count.
A vernier caliper or a micrometer can be used to measure the internal diameter of a beaker. These tools provide accurate measurements of dimensions, including internal diameters, with precision.
Measure external diameter. (A) Measure internal diameter. (B) Subtract B from A
It is not possible to answer this without more information. However to find the thickness measure the external diameter, measure the internal diameter subtract the internal from the external and that will give you the thickness of the pipe
This will differ depending on the type of bottle. Even though the capacity of the bottles may be the same (2 L), the design of the bottle and therefore the cap used will be different.The diameter of the cap on a 2 L Coca-Cola bottle is 28mm.To measure the diameter of the cap that you are using, place your ruler across the middle of the cap and measure the length from one end of the cap, through the middle to the other.
Take a string, wrap it around the wine bottle once, and measure the length of the string.
A caliper can be used to measure the internal and external diameter of a tube with about a 5cm bore. Make sure to use the appropriate jaws of the caliper for accurate measurements. Alternatively, a micrometer can also be used for precise measurements of the tube's diameter.
Circumference = 2*pi*r r(radius) * 2 = diameter So. assuming the bottle is fairly a circle, measure across the bottom to get the diameter and then divide that in half for the radius and use the circumference formula. Of course a bottle is not quite a perfect circle everywhere and you might need calculus to get a proper circumference. I am thinking vector calculus.
A micrometer or caliper can be used to measure the diameter of a test tube accurately. These tools provide precise measurements by directly reading the diameter of the test tube in millimeters.