36 I believe sorry if it’s wrong what I did was multiply 2x 18 have I nice day good luck!
Answer:
d the other equations the total is 35. this one the total would be 55
2 and 9
6 and 9
would be have the least common multiple of 18
Tan^-1 = 72.81° is your answer, use basic SOHCAHTOA functions