are the following pairs of angles complementary. (x + 16°) and (74 -x) °
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Two angles are complementary if they add up to 90°.
(x+16)°+(74-x)° = 90°
L.H.S. = x+16+74-x = 90°
R.H.S. = 90°
L.H.S. = R.H.S.
Therefore, the two angles are complementary.
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