Ladder

The ladder has a length 3.5 meters. He is leaning against the wall so that his bottom end is 2 meters away from the wall.
Determine the height of the ladder.

Result

x =  2.872 m

Solution:

x=3.52−22=2.872 mx=\sqrt{ 3.5^{ 2 }-2^{ 2 } }=2.872 \ \text{m}

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