Solve ABC if B = 42 degrees 10' and a = 9. Help me please.?

Question

I'm stuck and I think there is not enough information to figure it out. I just want it confirmed that there is not enough info. And if it is possible to figure out, would you mind explaining please. Thank you ahead of time :]

Answer 1

If you know this is a right triangle, then it can be solved.  Otherwise, you're right - there's not enough information.  Go back to the problem and look for additional instructions.  Perhaps there's one of those paragraphs at the head of a group of problems, or perhaps there's a diagram with information marked on it.

If it is a right triangle, then you can get A by subtracting B from 90 degrees.  You can get b by using the given information and the tangent of B, as tan B = b/a.  And, obviously, you can get the hypotenuse by using either sine or cosine of either A or B, or by using the Pythagorean Theorem.

Answer 2

There is no value for C, so there is not enough information to figure this equation, though what does 10' mean?

Ben

Answer 3

I think you need to use the law of sines and cosines.

Answer 4

is the value of B 42.10? i don't know maybe the answer is 128.9(the value of C) because i think it's a triangle so all you have to do is add the value of A and B then the sum would be subtracted to 180 because every triangle has 180degrees to be exact. if B is 42 degrees, the answer or the value of C is 129 degrees.i don't know if that really is the correct answer..

Answer 5

I don't know

Answer 6

Isnt this cheating?

Draw the diagram out.  Draw a line from A to AC, making a right triangle.  You can use cos to get the length.  then use sine and tan to figure out the angles and lengths to all sides.

hope this helps.  You could also clarify the question better if you want a better answer.