Answer: 15
Step-by-step explanation: Use the formula: 
Remember
should always be the hypotenuse or the longest side.
---> evaluate the exponents
----> subtract 12544 to the other side
---> take the square root of both sides

Answer:
278°
Step-by-step explanation:
m arc BAC = 360 -(2×41)
= 360 - 82 = 278°
42 is the answers I the problem
I am almost positive that the answer could be 8 feet below sea level