Answer:To find BC, we can use the Law of Cosines formula, which states: In this case, we have: - - - Now, we need to find angle in triangle . We can use the Law of Cosines again: Substitute the values we have: To find angle , we can use the inverse cosine function: Now, we can find BC using the Law of Cosines: Substitute the values we have: Therefore, the length of BC is approximately 15.79 units.
Step-by-step explanation:
