The well

The well has the shape of a cylinder with a diameter of 2 m. From ground level to water level are 4 meters and the depth of water in the well is 6 m. How many m3 of soil did they dig when digging a well? How many liters of water is in the well?

Correct answer:

a =  31.4159 m3
b =  18850 l

Step-by-step explanation:

D=2 m h1=4 m h2=6 m  r=D/2=2/2=1 m S=π r2=3.1416 123.1416 m2 a=S (h1+h2)=3.1416 (4+6)=31.4159 m3
B=S h2=3.1416 618.8496 m3 b=B l=B 1000  l=18.8496 1000  l=18850 l

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