A girl who can row $4.2 \mathrm{~km} / \mathrm{h}$ in still water wants to get across a river by the shortest route possible. The river is flowing at $3.1 \mathrm{~km} / \mathrm{h}$. At what angle upstream from straight across the river should she head?

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The Answer of A girl who can row $4.2 \mathrm{~km} / \mathrm{h}$ in still water wants to get across a river by the shortest route possible. The river is flowing at $3.1 \mathrm{~km} / \mathrm{h}$. At what angle upstream from straight across the river should she head?

A Girl Who Can Row 4.2 km/h4.2 \mathrm{~km} / \mathrm{h}4.2 km/h In Still Water Wants to Get Across a River by Still

A Girl Who Can Row $4.2 \mathrm{~km} / \mathrm{h}$ In Still Water Wants to Get Across a River by Still