it would be C i think hope this helps
Answer
This is how too apply it in trig when trying to find a side with only the degree and the side.
Answer:
C
Step-by-step explanation:
The volume of the regular pyramid is 
The base of given pyramid is regular hexagon with side 12 cm. The are of this hexagon consistsof area of 6 equilateral triangles and is equal to

Hence, the volume of the pyramid is

The answer is A. because the side lengths of the shape doesn't change. The side lengths are still 3 and 5.
Hope this helps!
-Raiden