## Trigonometry (10th Edition)

5'; 0.83$^{\circ}$
1. To start, we need to convert one of them so they are both in the same format. Let's convert 74.25 degrees as it is easy to convert, put them both in degree-minute format $75.25^{\circ}=74^{\circ}15'$ 2. Then, subtract to find the error $74^{\circ}20' -74^{\circ}15' = 5'$ 3. We need the error in both decimal degree and minute format $5'\div60\approx0.83^{\circ}$