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