Tree trunk

What is the smallest diameter of a tree trunk that we can cut a square-section square with a side length of 20 cm?

Correct answer:

D =  28.2843 cm

Step-by-step explanation:

a=20 cm  u=a 2=20 2=20 2 cm28.2843 cm  D=u=28.2843=20 2=28.2843 cm



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