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stmy1969
22.09.2019 •
Mathematics
Tony's office had already recycle 2 kilograms this year before starting the new recycling plant and a new plan will have the office recycling 1 kg of paper each week after 10 weeks how many kilograms of paper tony office have recycle
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Ответ:
Ответ:
Volume of cylinder(V) is given by:
where, r is the radius of the cylinder and h is the height of the cylinder
From the diagram:
Diameter of a pipe (d) = 10 cm
height of the pipe(h) = 2m
Use conversion:
1 m = 100 cm
then
2m = 200 cm
⇒h = 200 cm
Since, a pipe is in the form of cylinder.
We have to find the volume of a pipe.
We know that:
⇒![10 = 2r](/tpl/images/1198/0969/5324f.png)
Divide both sides by 2 we get;
5 = r
or
r = 5 cm
Substitute the given values and use π = 3.14. in [1] we have;
Simplify:
Therefore, the volume of a pipe in cm³ is, 15700