Answer:
365.73 miles
Step-by-step explanation:
Given that :
Angle of elevation (western high) = 41.25°
Angle of elevation (pine high) = 23.125
From the diagram attached :
Angle A = 180 - (41.25 + 13.125) = 115.625
Using the Sine rule :
a / SinA = b/SinB = c/sin C
512 / sin 115.625 = b / sin 41.25
554.68738 = b / sin 41.25
554.68738 * sin 41. 25 = b
b = 365.73 miles