Well, a BB is .177 and a 22 is .22. Close enough?
apparent diameter
Perhaps a flashlight.
area of object = (1/3) pi * radius^2 = (1/3) (pi) * (0.6)^2 = 0.377 Find the diameter of this object (assuming it's a circle), and that's the answer: diameter = radius * 2 radius = square root (area / pi) diameter = 2 * square root (area / pi) diameter = 2 * (0.335) = 0.67
The diameter of an object is twice the radius. Therefore 1,737.4 * 2 = 3,474.8
nominal diameter is the original diameter of an object
Three and three-tenths.
three and five tenths.
http://wiki.answers.com/Q/What_does_a_2_mm_diameter_object_look_like"
The diameter is the height: the tip to the toe of an object.
2 x pi x radius
To calculate the diameter of a circular object, you can measure the distance across the circle, passing through its center. Alternatively, if you know the radius (the distance from the center to the edge), you can double it, as the diameter is equal to twice the radius (Diameter = 2 × Radius). For circles with a known circumference, you can also use the formula Diameter = Circumference / π (pi).
It is the tenths place.