Lead for a mechanical pencil is typically 0.5 to 0.3 mm.
The diameter does not affect the length. It is a separate dimension. Diameter is the cross sectional measure of a circular object.
A millimetre: diameter of a pin head.
In decimal form, 5 hundredths of a millimeter can be written in the form .05 mm.
Pin heads.
finger nail
It is .25 mm that is the larger diameter
The circumference of a circle with a 10 millimeter diameter is about 31.42 mm
millimeter
The diameter is twice the radius so the answer is 12 millimeters.
The diameter of a circle represent the distance across it when divided in half. 1 millimeter equals .04 inches (rounded to one significant figure). Therefore 12 mm equals .05 inches.
The diameter of the bullets
The diameter does not affect the length. It is a separate dimension. Diameter is the cross sectional measure of a circular object.
A millimetre: diameter of a pin head.
0.00625 millimeter = 6.25 microns
19 millimeters
The diameter of a nickel is 21.21 mm.
If that's the diameter, the circumference is about 15.71 mm.