Answer:
10° 30' is equal to 10 degrees and 30 minutes, which is also equal to 10.5 degrees. 10° - 10° = 0°, so 10° 30' - 10° = 0° 30'. 30' is equal to 0.5°, so 0° 30' = 0.5°. Therefore, 10° 30' - 10° = 30'(0.5°)
