What is the ration of sin A if ab=30, bc=16, and ca=34

This is the right triangle!  I did check it out by using the Pythagorean theorem.

Because the location of the angle(A) is not specified, I used the angle situated between the adjacent and the hypotenuse.

Thanks for letting me know that I was half right (or wrong).

What is the ratio of sin A if ab=30, bc=16, and ca=34?

The ratio of sin(A) is opposite side (bc) over hypotenuse (ca)

sin (A) = (bc)/(ca)                                                                                                          

sin(A) = 16/34 

Maybe civonamzuk, but you do not know where the right angle is or even if there is a right angle :/

Oh I see civonamzuk,

I interpreted this question completely differently from you. 

You took ab to be a side.  I took it to be the multiple of side a and side b.

I think your interpretation was the one intended.

Which means that your answer was completely correct        Thank you :)