What is the correct way to solve this problem?
2015-12-16 3:35 pm
A ship is 45 miles east and 25 miles south of port. The captain wants to sail directly to port. What bearing should be taken? (Round your answer to two decimal places.)
回答 (3)
2015-12-16 3:48 pm
A ship is 45 miles east and 25 miles south of a port.
The captain wants to sail directly to the port.
What bearing should be taken?
tan Ө = 45/25 = 9/5
arc tan 1.8 = 60.95°
The bearing to be taken is N60.95⁰W.
The captain wants to sail directly to the port.
What bearing should be taken?
tan Ө = 45/25 = 9/5
arc tan 1.8 = 60.95°
The bearing to be taken is N60.95⁰W.
2015-12-16 3:44 pm
tan Ө = 25 / 45 = 5 / 9
Ө = 29⁰
Required return bearing is 299⁰
Ө = 29⁰
Required return bearing is 299⁰
2015-12-16 3:43 pm
tan T = y/x = -25/45
T = inv tan(-25/45) = -29.05 deg. << this is a trig angle
270 + 29.05 = 299.05 deg <<< answer
T = inv tan(-25/45) = -29.05 deg. << this is a trig angle
270 + 29.05 = 299.05 deg <<< answer
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