# physics

A car is driven 215 km west and then 85 km southwest. What is the displacement of the car from the point of origin magnitude and direction draw a diagram.?

I kinda understand how to do this but in order to solve this you need to get a 45 degree angle and i don't know where that comes from

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1. This is coming from cesium plane all x and y-axis are perpendiculars , Southwest is 45 degrees

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