Question about The Learning Company Achieve! Math & Science Grades 1-3 (381933) for PC, Mac
Maths
I'm not sure what your ellipse looks like but the equation for the area of an ellipse is given by:
pi times the long axis times the short axis
pi = 3.1416
The length of the long axis is from the center of the ellipse to the outer edge of the ellipse
The length of the short axis is from the center of the ellipse to the outer edge of the ellipse
Hope this helps Loringh
Posted on Nov 02, 2008
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the answer to my problem (whats the area of an ellipse part circle with a long axis of 2.500mm and radius is .425) is the area is 0.835 but how have i achieved this.
You will never know how relieved I am and how helpfull your explination of the equation has been, as I have now realised where I went wrong and came to think the answer was .834 I have ended up with a 1/4 section of the Ellipse when the true area of the problem is double that. 3.1416 x 2.500 x .425 :- 2 = 1.66 not 3.1416 x 2.500 x .425 ;- 4 = .834 This might seem trivial to most but i needed to find the area of this as its the measurement of a bay window floor and needed the accurate measure, once again thank you very much, your on my christmass card list. cheers
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Loringh
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