B. SAS
Pretty much the way I look at it, there is one angle, and 2 sides beside it. Easiest way for me to explain.
Answer:
16
Step-by-step explanation:
4+4=8
8+8=16
First step, divide 6 from both sides.
t/6=r^2+1
second step, subtract 1 from both sides
t/6 -1=r^2
Now take the square root of each side.

Done!
A= angle
S= side
This would be AAA, so the answer is C since that answer is not here:)