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    Complementary Angle

    Alternate name

    complementary angle

    Basic definition

    Complementary angles are a pair of angles whose measures add up to 90 degrees.

    Detailed definition

    Two angles α and β are said to be complementary if α + β = π/2. In other words, α and β are complementary angles if they produce a right angle when combined.

    Related terms

    angle | right angle | supplementary angles

    Educational grade level

    middle school level (California grade 6 standard)

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