Answer:
Step-by-step explanation:
515615151
Use the Cosine Rule:-
AC^2 = 6^2 + 8^2 - 2*6*8 cos 78
= 80.04
So AC = sqrt 80.04 = 8.9 to nearest tenth
Answer:
I dont know...
Step-by-step explanation:
tell me the answer please
Your answer would be X=-6
Answer:
you are right, 36°
Step-by-step explanation:
angles add up to 180