Respuesta :

Deadlocks12
Not enough information in order to solve. Need to know where a and b are

Answer:

56.9°

Step-by-step explanation:

Assuming you mean a and b as the legs of a right triangle and θ as the bigger angle in a right triangle, we can work out easily that

cos θ = 6/11

so θ ≈ 56.9°(to 1 d.p.)