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Find the missing angle measurement the complementary angles add up to 90 degrees (right angle) supplementary angles add up to 180 degrees ( straight angle)

Find the missing angle measurement the complementary angles add up to 90 degrees (right-example-1
User Thom Ives
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Let x be the missing angle measurement.

If the two angles are complementary, then x + 30 = 90

x = 90 - 30 = 60 degrees

If the two angles are supplementary, then x + 60 = 180

x = 180 - 60 = 120 degrees

Therefore, the missing angle measurement can be 60 degrees or 120 degrees.
User Krishnab
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