if the sides of a triangleABC is 16cm,19cm and 15cm what about the angleB is it the greatest or smallest angle or is angleB = angleC or ia angleA the smallest angle?

plz help

You don't say which sides are the 16, 19 and 15, so I don't know how they match up.

But, the largest angle is always opposite the largest side, the smallest angle is always opposite the smallest side, and the middle angle .......etc.

If you want to find the angle, use the cosine law to find the largest angle, then the sine law to find a second angle.