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At what height does the top of the ladder touch the wall?

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In the picture you see a ladder with a length of 4 meters, placed against a wall. The ladder touches the box of 1 by 1 meter, which is standing against the wall.

enter image description here

At what height does the top of the ladder touch the wall?

posted Jul 14, 2014 by Anuradha Tabyal

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