AB = BC
3x-4=5x-10
-4=2x-10
6=2x
3=x
AB = 3x-4
AB = 3 (3)-4
AB = 9-4
AB =5
Therefore, AB is 5.
BC = 5x-10
BC = 5(3)-10
BC = 15-10
BC= 5
You would do 60 times 11. 60 times 11 equals 660 that is the answer
Answer:
The answer is "5.7"
Step-by-step explanation:
Using the cosine rule.



I think the answer is 180.