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Vector A has magnitude 4.0m and points to the right; vector B has magnitude 3.0m and points vertically upward. Find the direction of a vector C such that A + B + C =0. Express your answer in degrees counterclockwise from A using two significant figures. --- so I started with c = 5 because it is a 3, 4, 5 triangle in quad 1 therefore cos^-1(4/5) = 36.9 degrees what does it mean counter clockwise? please explain

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