Question 375077
One side of the triangle is 150 nm (15*10), the 2nd is 120 nm (12*10).
The included angle is 50º (200 - 150)
Use Cosine Law
{{{d^2 = 150^2 + 120^2 - 2*120*150*cos(50)}}}
Solve for d (in nm, nautical miles)