# Trignometry pls help

posted by
**Sally K** on
.

1. The radius of the circumscribed circle of the triangle ABC is 15 cm. Given that B is a 49-degree angle, find the length of side AC.

2. The radius of the circumscribed circle of the triangle ABC is r cm.

Given that B is a â-degree angle, find the length of side AC, in terms of r and â.