A circle is drawn with its center at (8,0) and with radius r such that the circle cuts the ellipse x^2 + 4y^2 = 16 at right angles. Find the radius of the circle

radius-of-circle

#1

A circle is drawn with its center at (8,0) and with radius r such that the circle cuts the ellipse x^2 + 4y^2 = 16 at right angles. Find the radius of the circle ?

Answer:

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