Telegraph 83610

How much wood was used to make 200 telegraph poles 6 m high and 15 cm in diameter

Correct answer:

V =  21.2058 m3

Step-by-step explanation:

n=200 h=6 m d=15 cm m=15:100  m=0.15 m  r=d/2=0.15/2=403=0.075 m  V1=π r2 h=3.1416 0.0752 60.106 m3  V=n V1=200 0.106=21.2058 m3

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