Answer:
Step-by-step explanation:
You use the Law of Cosines when you know all three sides and want to find the angles of a triangle.
For example, if you want to find ∠A, you use the formula
1. ∠ A
2. ∠B
3. ∠C
Answer:
Wait I don't what to say where is the question?
Step-by-step explanation:
In standard from the X comes first, then your Y value, then your equal sign and your numbers that don't have a letter value. I'm having a bit of trouble reading your question tbh, but maybe that could help you?
Answer:
67 and 69
Step-by-step explanation: