You probably mean the width of a cassette tape!
25.4 mm = 1 inch18.5 mm = 0.728 inch (rounded)
34 millimeters is equivalent to 3.4 centimeters or 0.034 meters
A typical grain of sand measures about 1 mm in diameter.
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Magnetic backup tapes, like the audio tapes they were developed from, range in size from tiny cartridges with tape 1/8" wide all the way up to gigantic open reels several feet wide, containing 2" or wider tape.
compare it with cm .....mm x 10 cm
A ruler or tape measure.
25.4 mm = 1 inch18.5 mm = 0.728 inch (rounded)
No. The smallest division on a tape measure is normally a millimetre. So you can see what 4 mm looks like and what 5 mm looks like but you can only make an informed guess at 4.5 mm.
Meter stickI'm thinking you would use a tape measure
You find a tape measure and take the measurement across the door, then the length of it, then if necessary the thickness.
It is a length of 1.9 centimetres.
34 millimeters is equivalent to 3.4 centimeters or 0.034 meters
take a can and put paper around it then tape it up then measure it in mm
in mm
Any length or distance can be expressed in mm.
A typical grain of sand measures about 1 mm in diameter.