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What is the perimeter of an ellipse if the major axis is 30MM and the minor axis is 12MM?
A simple question with a horrendously complicated answer.
Short of carrying out elliptical integrals, the best I can suggest is the Ramanujan approximation according to which:
Perimeter = pi*{3(a + b) - sqrt[10ab + 3(a2 + b2)]} where a and b are the semi-major and semi-minor axes.
Substituting a = 15 mm and b = 6 mm gives
Perimeter = 69.04 mm.
A quick and easy, but roughly approximate method is as follows:
The ellipse is between a circle of diameter 30 mm and one of 12 mm. Averaging these two gives a diameter of 21 mm. A circle with a 21 mm diameter has a circumference (perimeter) of 65.97 mm.
What else can I help you with?
perimeter of rectangle with 14mm and 12mm?
52mm
The perimeter of a square if the side length is 12mm?
Well, isn't that just lovely? If the side length of a square is 12mm, then all four sides are equal in length. So, to find the perimeter, you simply add up all the sides, which would be 12mm + 12mm + 12mm + 12mm, giving you a total perimeter of 48mm. Just imagine all the happy little measurements coming together to create a beautiful square!
What is the perimeter of a rectangle that has width 12mm and length 20mm?
12*2+20*2 = 64 mm
How do you find the perimeter of a semi circle with a diameter of 12mm?
-- 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).
What is 12MM plus 12CM?
12mm + 12cm
How many cm in 12mm?
1.2 cm in 12mm
How much bigger than 12mm is 14mm?
To determine how much bigger 14mm is than 12mm, subtract 12mm from 14mm. This calculation shows that 14mm is 2mm bigger than 12mm.
Lug nut size on 1987 El Camino?
12mm 12mm
What fruit or object is 12mm in size?
A blueberry is typically around 12mm in size.
What types of drill bit to be used for hole of 12mm dia in 12mm SS plate?
A standard HSS drill bit in 12mm is all that's needed.
Is 12mm and half inch MDF the same?
yes,12mm= approx 1/2inch.
What is the advantage with 12mm vs 13mm cue tips?
12mm gives more spin on the cue ball
