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Home > PC3 > Chapter 12 > Lesson 12.1.4 > Problem 12-60


Write the equation of each conic described below.

  1. A circle centered at with a circumference of .

    If the circumference of a circle is , what is the radius of this circle?

  2. An ellipse that has foci at and and a major axis of length .

    The center of the ellipse lies at the midpoint of the two foci.