How can I solve this problem?
- PuzzlingLv 71 month ago
Answered in the other question with the larger picture.
- TomVLv 71 month ago
You can using the Law of Cosines.
a² = b² + c² - 2ac cosA
The posted image is too small and blurry to read reliably, but if you plug the values into the above equation you can solve for the length of the triangle's side "a" which is equivalent to side BC and is opposite angle A.
b is side AC and is opposite angle B
c is side AB is is opposite angle C