Find the missing angle in each set of complementary angles.

To find the missing angle in each set of complementary angles, remember this rule:

Complementary angles add up to 90 degrees.

So, for each problem, you subtract the given angle from 90 to find the missing one.

Here is the step-by-step calculation for each number:

1) $90 - 54.5 = 35.5$
2) $90 - 37.8 = 52.2$
3) $90 - 38.8 = 51.2$
4) $90 - 62.2 = 27.8$
5) $90 - 66.2 = 23.8$
6) $90 - 40.3 = 49.7$
7) $90 - 59.2 = 30.8$
8) $90 - 48.3 = 41.7$
9) $90 - 62.1 = 27.9$
10) $90 - 28.6 = 61.4$
11) $90 - 39.5 = 50.5$
12) $90 - 54.7 = 35.3$

Final Answer:
1) Angle = 35.5°
2) Angle = 52.2°
3) Angle = 51.2°
4) Angle = 27.8°
5) Angle = 23.8°
6) Angle = 49.7°
7) Angle = 30.8°
8) Angle = 41.7°
9) Angle = 27.9°
10) Angle = 61.4°
11) Angle = 50.5°
12) Angle = 35.3°