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A steel pipe is 2 meters long, 10 cm in outer diameter and 8 cm in inner diameter. Each cubic centimeter of steel pipe weighs 7.5 grams. How many kilograms does 100 such steel pipes weigh?
10÷2=5cm
8÷2=4cm
The volume of one is (5x5x3.14-4x4x3.14) x2x100 = 5652 cubic centimeter
Weight 5652x7.5x100 △ 1000 = 4239kg
How to calculate the cube of a log
How to calculate the cube with a length of 2 meters and a diameter of 25 cm
Let's make it simple and figure it out for me
Circumference × radius × radius x 2
3.14 * 0.125 * 0.125 * 2 = 0.098125 cubic meters
How to calculate log cube
It's like the bottom area times the height! V = ψ * r * r * h. where ψ = 3.14. R is the radius. I've been out for a few years, and I've forgotten it. I hope it doesn't help
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