QUICK TRIG QUESTION ..... thank you!?

Question

Quick trig question...didn't go over in class......?

1.) 75°15' + 83°32'

2.) 47°23' - 73°48'

3.) 55°30' + 12°44' - 8°15'

thank you, once i see an example for each ill be able to finish the 30 problems i have left ( :

Answer 1

There are 60 minutes in 1 degree. The addition and subtraction is therefore identical in character to that for hours and minutes of time.

1.

158d 47m.

2.

- 26d 25m.

3.

59d 59m.