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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 diameter is the measurement of a line that goes right through a circle, through the centre point. In cases where we have a ring or some other such object with multiple circles, we would have an external diameter and an internal diameter. The internal diameter is the diameter of the inner circle. The external diameter is the diameter of the outer circle.
Internal diameter.
Internal diameter.
An internal caliper gauge.
External diameter, internal diameter, and tooth count.
A vernier caliper
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
Take a string, wrap it around the wine bottle once, and measure the length of the string.
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.
vernier calliper
To measure the inside diameter of a ring using a vernier caliper, you can gently open the jaws of the caliper, place them inside the ring, and then slowly close the jaws until they fit snugly against the inner circumference of the ring. Take the reading from the main scale and vernier scale where they align. This will give you the inside diameter measurement of the ring.
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.