Question 6 • IC Pre-Cal - Deering
The trains and the station form a triangle with sides 200 km and 350 km enclosing an angle of 115°. Use the law of cosines: d² = 200² + 350² − 2(200)(350)cos(115°) ≈ 221,666.5. Taking the square root gives d ≈ 470.8 km, so the trains are about 470.8 km apart.
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