$\"\"$

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Height of the window is $\"\"$ .

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Distance between the ladder and wall is $\"\"$ .

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Find the length of a ladder.

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Let the length of a ladder as $\"\"$ .

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Draw a diagram using above information.

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$\"\"$

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Pythagorean theorm : $\"\"$ .

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$\"\"$

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$\"\"$

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

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Choice (G) $\"\"$ is correct.

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$\"\"$

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Choice (G) $\"\"$ is correct.