Complementary Angles Meaning

Interact with this app for a minute or two. As you do, be sure to change locations of LARGE POINTS. Be sure to change the sizes of both angles by using the colored slider.
Without Googling, describe what it means for 2 angles to be complementary angles.
[color=#000000]In the app above, one colored angle i[/color][color=#000000]s said to be the [/color][i][color=#000000][b]complement [/b][/color][/i][color=#000000]of the other colored angle[/color][color=#000000], and vice versa.[br][/color][color=#000000]Given this information, determine the [/color][i][color=#000000]complement[/color] [/i][color=#000000]of a 40 degree angle. [br][/color]
What is the complement of an angle that measures 1 degree?
What angle has a measure whose complement is equal to itself?

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