ings Review View Help O Search IT AaBbCc[ AaBbCcDd AaBbCcDd AaBbCcE AaB Heading 1 1 Normal 1 No Spac... Heading 2 Title Paragraph Styles The equation of an ellipse is # + + = 1, where a and b are positive constants, a > b. The foci of this ellipse are located at (c, 0), and (-c, 0), where c = (a2 - b2)1/2. The eccentricity, e, of this ellipse is given by e = , while the length of the ellipse's perimet is "I 42 (1 - 02 sin 2 0 )/2 do . If 0