Dig water well

Mr. Zeman is digging a well. Its diameter is 120 cm and plans to be 3.5 meters deep. How long (at least) must be a ladder, after which Mr. Zeman would have eventually come out?

Correct answer:

x =  3.7 m

Step-by-step explanation:

x=3.52+1.22=3.7 m



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