Question

justify that the formula a/sin(A) = b/sin(B) = c/sin(C) is correct for ANY triangle, usuing knowledge of right triangles and trigonometry.

Answer 1

how good are you with visualizing pictures? :)

Answer 2

this is just the law of sines...upside down

Answer 3

http://www.twiddla.com/515712

Answer 4

/ h | \
/A | B\
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Can you make sense of this picture?

Answer 5

angle A, angle B, and height drawn down from the top angle

Answer 6

it might be easier on http://www.twiddla.com/515712 its a virtual whiteboard