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From a point on a bridge across a river, the angles of depression of the banks on opposite sides of the river are 30∘ and 45∘, respectively. If the bridge is at a height of 6 m from the banks, find the width of the river. |
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Answer» From a point on a bridge across a river, the angles of depression of the banks on opposite sides of the river are 30∘ and 45∘, respectively. If the bridge is at a height of 6 m from the banks, find the width of the river. |
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