2006-07-12 07:35:38 · 5 answers · asked by Katie R 1 in Science & Mathematics ➔ Mathematics
Do you mean the area of an ellipse?
It's the semi-major axis times the semi-minor axis times pi.
A = ab(pi)
In the case of a circle, the a=b=r, meaning the area of a circle is pi r^2
The harder task is to the find the circumference of an ellipse.
2006-07-12 07:43:54 · answer #1 · answered by Bob G 6 · 0⤊ 0⤋
First I am going to assume that you mean an ELLIPSE, not an eclipse because an eclipse is something that happens with the sun and the moon and earth. Second the formula is A=pi*a*b where a and b are the length of semimajor and semiminor axes (how wide and long is the ellipse divided by 2). Notice that an ellipse reduces to a circle when a=b and the formula reduces to A = pi*a*a = pi*b*b where a (or b) is the radius of the circle.
2006-07-12 07:49:47 · answer #2 · answered by The Prince 6 · 0⤊ 0⤋
When you come to the point of Math question and formula etc.. you might have meant ELLIPSE, which is in common word OVAL.
The common mathematical formula for an ellipse is:
1 = ((x/a)2 + (y/b)2)½
If you really mean ELLIPSE, please go to the web
www.axwoodfarm.com
You will find more about it!
2006-07-12 09:15:12 · answer #3 · answered by sakura 2 · 0⤊ 0⤋
[(1/2 Major axis)*(1/2 minor axis)]*pi
2006-07-12 07:44:38 · answer #4 · answered by n 2 · 0⤊ 0⤋
E=Mc2
2006-07-12 07:39:40 · answer #5 · answered by EggChen 2 · 0⤊ 0⤋