geometry

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Is it always true, sometimes true, or never true that two complementary angles have a common vertex?

  • geometry -

    I believe that it is always true. Complementary angels add up to 90 degrees.

  • geometry -

    Wait, sometimes true.

  • geometry -

    Sometimes. The angles can be anywhere in a figure as long as they add up to 90 degrees. Consider for example the acute angles of a right triangle

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