Answer:
A
Step-by-step explanation:
To convert degrees to radians
radian measure = degree measure × 
Hence
radian measure = 150° × 
Cancel both 150 and 180 by 30, then
radian measure = 5 ×
= 
You cant since you have no measurements
you realize you could easily go around the whole perimeter w/ a tape measurer then add the sides together
The answer is 26, because the greatest the side of a triangle can be is the sum of the two lengths. (12+14=26)