Perimeter 30751

The pile of sand dumped from the car has the shape of a cone with a height of 1.4 m and a perimeter of 7.98 m. How many m3 of sand is there for the buyer if the sand density is 1,750 kg / m3?

Correct answer:

V =  2.3648 m3

Step-by-step explanation:

h=1.4 m o=7.98 m  o=2 πr  r=o/(2π)=7.98/(2 3.1416)1.2701 m  S=π r2=3.1416 1.270125.0675 m2  V=31 S h=31 5.0675 1.4=2.3648 m3

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