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 width of the river is 12 m , find the height of the bridge.

From a point on a bridge across a river, the angles of depression of t

1.	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 width of the river is 12 m , find the height of the bridge.
Answer» From a point on a bridge across a river, the angles of depression of the banks on opposite sides of the river are $30^{\circ}$ and $45^{\circ}$ , respectively. If the width of the river is 12 m , find the height of the bridge.

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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 width of the river is 12 m , find the height of the bridge.

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