The complement of 60° is:, 50°, 30°, 120°, 300°, Angles in a revolution add to:, 360°, 90°, 180°, 270°, The supplement of 30° is:, 60°, 70°, 150°, 330°, Complementary angles add to:, 90°, 180°, 270°, 360°, Supplementary angles add to:, 90°, 180°, 270°, 360°, ∠ABC has vertex, A, B, C, AB, Vertically Opposite Angles:, Add to 90°, Add to 180°, Are Equal, Add to 360°

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