Applications of Trig: related acute angles, coordinate plane

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The discussion revolves around the application of trigonometry in identifying acute angles and their positions on the coordinate plane. A participant seeks confirmation on the correctness of their calculations regarding the terminal arm of angle A. Responses indicate that the calculations appear accurate, with a suggestion about rounding practices. The conversation emphasizes the importance of verifying trigonometric solutions in homework. Overall, the interaction highlights collaborative learning in understanding trigonometric concepts.
Evangeline101
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Homework Statement


upload_2016-8-16_20-4-58.png


Homework Equations



none

The Attempt at a Solution


Two possible locations on the coordinate axis for the terminal arm of angle A:
upload_2016-8-16_20-6-57.png


Two possible values for the measure of angle A and the related acute angle:

upload_2016-8-16_20-8-40.png


Can someone please tell me if I did this correctly?
 

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Evangeline101 said:

Homework Statement


View attachment 104789

Homework Equations



none

The Attempt at a Solution


Two possible locations on the coordinate axis for the terminal arm of angle A:
View attachment 104791

Two possible values for the measure of angle A and the related acute angle:

View attachment 104792

Can someone please tell me if I did this correctly?
That looks good.

Are you instructed to round to the nearest 0.1° ?
 
SammyS said:
Are you instructed to round to the nearest 0.1° ?

No, I haven't been instructed to do so, but I usually put the rounded number in brackets just in case...
 
SammyS said:
That looks good.

Anyway, thanks for verifying my answer :)
 

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