I would draw the triangle then it would be easier to answer. It is not an equilateral because it is not equal on all sides. Perhaps scalene because all the sides are not the same.
Answer: don’t know the answer but use this link I hope I can helps u
http://kevinsworkbench.com/scopecalculator/index.html
Step-by-step explanation:
396 divided by 12 will be 33