Complementary Meaning?

[color=#000000]In the app below, the two colored angles [/color][color=#000000]are said to be [/color][b][color=#000000]complementary angles[/color][/b][color=#000000]. [/color]
Interact with this app for a few minutes. LARGE POINTS are moveable.
In your own words, describe what you think it means for 2 angles to be complementary.
[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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