my answer -
Two angles are said to be complementary to each other when the sum of the two angles gives 90°.
To find the angle complementary to angle 80°25′, we subtract angle 80°25′ from angle 90°.
i.e. 90° - 80°25′ = 90° - 80° 25/60 = 90° - 80° 5/12 = 9° 7/12 = 9° (7/12 x 60)' = 9°35'
Therefore, the angle complementary to 80°25′ is 9°35'.
p.S
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