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Question

What is the angle of elevation of the Sun when the length of the shadow of a vetical pole is equal to its height?

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Solution

Let be the angle of elevation of sun is.

Given that: Height of pole is meters and length of shadow is meters. Because length of shadow is equal to the height of pole.

Here we have to find angle of elevation of sun.

So we use trigonometric ratios.

In a triangle,

Hence the angle of elevation of sun is .


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