$\"\"$

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The length of shadow of monument is $\"\"$ .

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The angle of elevation of the sun is $\"\"$ .

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Find the height of the monument.

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Consider height of the monument is $\"\"$ .

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Draw the diagram for the situation.

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$\"\"$

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From the figure :

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$\"\"$

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Substitute $\"\"$ and $\"\"$ and $\"\"$ .

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$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Therefore, the height of the monument is $\"\"$ .

\

$\"\"$

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The height of the monument is $\"\"$ .