Posted by **Anon** on Saturday, February 26, 2011 at 6:21pm.

Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30"

I have to use logarithms and law of tangents . and then provide the check.

which says law of sine or mollweids equation. I can't us the cosine law.

If you already posted the responds then please provide me with the link.

- trigonometry -
**MathMate**, Saturday, February 26, 2011 at 7:10pm
I have posted a corrected version of solution using the law of tangents.

I believe by now you are capable of doing the calculations (multiplications and divisions) using logarithms.

I found the third side (c) using the cosine rule, but it gives the same answer as the sine rule, similar to what you did.

Here's the link to your original post:

http://www.jiskha.com/display.cgi?id=1298609593

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