Question

The area, a, of an ellipse can be determined using the formula a = πxy, where x and y are half the lengths of the largest and smallest diameters of the ellipse. 

Answer 1

Answer:

D: y = a ÷ (πx)

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Answer 2

The formula can also be proved using a trigonometric substitution . Each of above proofs will generalize to show that the volume of an ellipsoid  with semi-axes A, B and C is just

(4/3)*Pi*A*B*C