- When a citrus fruit like a lime is cut in half, it creates two congruent circles with the same radii, diameters, circumferences, and areas. - Each circle contains 9 central angles that add up to 360 degrees and are equal in measure to their corresponding arcs. - A lemon slice can have two different circumferences depending on whether the diameter is measured from the outside edge or inside edge of the peel through the center. - A lime can be cut into two semicircles with arcs of 180 degrees each or into minor and major arcs.