Since a square has four sides, just multiply the side length by four: 12mm x 4 = 48 mm
-- Find the circumference of a full circle with a diameter of 12 mm.-- The perimeter of the semi-circle is(1/2 the circumference of the full circle) + (the diameter).
The circumference is 75.4mm
Close to 12cm
A right cylinder having a base radius of 12mm and a height of 60mm has a lateral area of approximately 4523.89mm2
52mm
Since a square has four sides, just multiply the side length by four: 12mm x 4 = 48 mm
You have specified three dimensions. A rectangular area will have a length and a width. If your length is 90m, is the width 25mm or 12mm? I can't make sense of this as it is.
12:5.9 or 120:59
300 sq mm
If it is a square, divide 12 mm by 4. Obviously it is a 3 mm per side. You don't have enough info for a rectangle or other shape unless it is a triangle which would be 4 mm for an equilateral triangle.
25.4 mm in an inch. so, 12mm is just short of 1/2 inch
12mm
Neither mass nor weight can be converted to length.
13mm diameter & 3100 length pl. give me weight
-- Find the circumference of a full circle with a diameter of 12 mm.-- The perimeter of the semi-circle is(1/2 the circumference of the full circle) + (the diameter).
The 6mm eyepiece is stronger than the 12mm eyepiece. A lower focal length eyepiece like the 6mm provides higher magnification and allows you to see more details compared to a higher focal length eyepiece like the 12mm.