2 millimeters
Two coins stacked on top of each other on each corner (total of 8) and one coin in between the corner stacks to complete each side (4 more) for a total of twelve coins.
Cut to the chase and go to the link below if you are not interested in the empirical approach explained here. These are measurements that I took with my shiny 2005 dime and my Mitutoyo micrometer. The micrometer is in inches, and is several years old; it has gotten very little use and is in excellent condition. I converted my measurements in inches to mm. Presuming that my measurements are reasonably accurate, my dime is 1.19mm thick at the center, and 1.30mm thick at the edge. My measurement is a little different from the linked site information, which I can probably attribute to some wear on the coin, inherent limits of the micrometer, possible slight calibration error, or errors of technique. I re-measured, using 10 coins and 18 coins. Since I measure at the approximate center of the coins, and the stacks of coins rest edge to edge, I corrected for the top and bottom edges by adding to my average thickness the difference between my center and edge measures for one coin. For 18 dimes I calculate a thickness of 1.38mm For 10 dimes I calculate a thickness of 1.36mm All these measurements are telling me several things. My technique is reasonably good for "desk-top" work; my micrometer may not be as accurate or as well calibrated as I assumed; my correction factor for outer edges of stacked coins could be off and might be more accurate after several averaged measurements; there could be variability in the coins that I am not accounting for; the coins and the micrometer may not be at the correct temperature-- any number of other things may be affecting my measurements. One puzzling thing is that my measurement for the diameter of the dime is almost exactly in agreement with the link. I measure .7045 inches, and the site gives .705 inches. It's even possiblethat my measurement is closer to the actual measurement, and the site's .705 is a rounded figure. Nevertheless, this has been a lot of fun. See link for official specifications.
The answer depends on what other information you have.
You could have 5 quarters or 10 dimes and one quarter or several other combinations of coins.
The other coin is the half-dollar coin.
It is 0.19685 inches. That is a little less than the thickness of two nickels and a dime stacked together. If you prefer the Euro, it is a little more than two 2-Euro coins stacked on top of each other.
Two coins stacked on top of each other on each corner (total of 8) and one coin in between the corner stacks to complete each side (4 more) for a total of twelve coins.
PowerPoint stacks these objec on top of each other in the other in which they inserted or drawn
The Bank of England is not in the coin making business, they produce banknotes, amongst other things. The Royal Mint produces coins and the thickness of any given coin will depend on the denomination and the year of the coin concerned.
lamellae
Currency straps are used to bind dollar (and other denomination) bills in stacks.
Units aren't used to measure anything. After you complete the measurement, using equipment suited to the purpose, you use units to describe the result of your measurement, and to tell other people about it. I would measure the thickness of a hair using a micrometer, and express the result in millimeters.
A veneer is a thin decorative cover that is applied to a wood surface or any other material. It is less than 3 millimeters in thickness, and glued onto flat panels of particleboard, fiberboard, or wood.
Calipers, of which there are many types, are used to measure thickness. The most common type is the Vernier Caliper.
The thickness of the US dime is 1.35 millimeters. That's the same as 0.00135 meter, or 0.00000135 kilometer. You could use whichever of those you like, to remember the thickness of a dime or discuss it with other people. They're all correct. But the millimeter produces the most convenient number.
The Speed Stacks Competitions are not in any one state, but are held in many states and also in other countries. If this is not the answer you are looking for, try being more specific.
? No, they are completely different - one is 25 and the other is 250.