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.
A millimeter is roughly the thickness of a credit card or the width of a large paperclip. It's also about the diameter of a small marble or a grain of rice. In terms of everyday objects, the thickness of a standard pencil tip is close to one millimeter.
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 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 is twice the radius so the answer is 12 millimeters.
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.
19 millimeters
0.00625 millimeter = 6.25 microns
The diameter of a nickel is 21.21 mm.
If that's the diameter, the circumference is about 15.71 mm.