First use the law of cosines to find the length of b. Then use the law of sines to find the angle A, and finally angle C. Post back with what you get for answers and we'k check it for you.
So, I am given SAS.
Now I must find the remaining angles and side.
I am given:
M<A=
M<B=20 degrees
M<C=
a=10mm
b=
c=15mm
and the triangle looks somewhat like this:
......10mm
B\---------|C
...\20........|
....\...........|
.....\..........|
......\.........|
.......\........|
........\.......|
15mm.\......|
..........\.....|
...........\....|
............\...|
.............\..|
...............A