Cross-section 5567

What diameter must the trunk of a tree have to carve a beam with a square cross-section of 20 cm on it?

Correct answer:

D =  28.2843 cm

Step-by-step explanation:

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

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