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.

A bridge across the river makes an angle of `30^@` with the river bank

1.	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.
Answer» 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` So, width of river is `30sqrt3 m`.

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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.

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