A red cross helicopter takes off from headquarters and flies 75 km at 30 degrees south of west.  There is drops off some relief supplies, then flies 90 km at 65 degrees west of north to pick up three medics.   If the helicopter then heads directly back to headquarters, find the distance and direction it should fly

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.