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A bridge across the river makes an angle...

A bridge across the river makes an angle of `30^@` with the river bank. If the length of the bridge across the river is 60m, Find the width of the river.

Text Solution

Verified by Experts

Let width of river is `x` in meters. We can create a triangle with the given details.
Please refer to video for the diagram.
From the figure, `(AB)/(AC) = cos30^@`
`=>x/60 = cos30^@`
`=> x = 60**sqrt3/2`
`=>x = 30sqrt3 m`
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