Question 1194652
Two cars leave the same place at the same time. Each car travels at an average of 60kph. One travels in the direction 60 degrees north-east. The other travels in the direction 40 degrees south-east. How far apart are the two after 30 minutes?
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2 sides of the triangle are 30 kms.
The angle between them is 100 degrees
Use the Cosine Law:
c^2 = a^2 + b^2 - 2ab*cos(100)