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Copy of Complementary Angles

In the applet below, the pink angle and the blue angle are said to be complementary angles. Interact with this applet for a minute or two, and answer the questions that appear below it.
Questions: 1) In your own words, describe what it means for 2 angles to be complementary angles. 2) In the applet above, the blue angle is said to be a complement of the pink angle, and vice versa. Given this information, determine the complement of a 40 degree angle. 3) What is the complement of a 1-degree angle? 4) What angle measure has a complement whose measure is equal to itself?