Find the measure of angle P in the triangle below. Please help!!

Question

anonymous · Answer

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wolf1728 · Answer

sin (P) = 48 / 60
sin (P) = .8

arc sin (.8) = 53.13 degrees

anonymous · Answer

thank you!! can you help me with the follow up question?

anonymous · Answer

using the value found iin the previous problem find the measure of angle R and the measure of angle Q

anonymous · Answer

wait I just realized these questions are in Law of cosine section so do I have to use cos?

anonymous · Answer

r will the answer still be the same?

anonymous · Answer

or*

wolf1728 · Answer

Angle Q is 90° because that is a 3 - 4 - 5 triangle and are always right triangles.
Angle R is 90° - 53.13° = 36.87°
I don't know why they start talking about law of cosines considering that was all done without using it.

anonymous · Answer

ok thank you so much!

wolf1728 · Answer

Okay you are welcome.