Answer: first multiply then determine if you should add or subtract.
Step-by-step explanation:
You would add all the sides together
Cos 45=7 under root 2 /AB
1 / Under root 2 = 7 under root 2 / AB
AB=14
Ans = 14(b)
Answer:
E and F= 54 Degrees D is 90 degrees
Step-by-step explanation:
