Mathematics: Find the volume to the nearest whole number

Find the volume to the nearest whole number

mr663656

23.01.2022

6,861 cm³

Step-by-step explanation:

First, find the volume of of the cylinder, the formula fr a cylinder is π·r²·h

π·9²·15≈3,817

Then, find the volume of the cone, 1/3(πr²)(h)

π·9²·12≈3,054

Finally, add them together to get ≈6,861 cm³

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alexismoran1495

26.02.2021

Volume of cylinder, $V=87.42\ m^3$

Step-by-step explanation:

It is given that,

Area of the base of a cylinder, $A=28.2\ m^2$

Height of the cylinder, h = 31. m

We need to find the volume of the cylinder. The volume of a cylinder is given by the formula as :

$V=\pi r^2 h$

Where, $A=\pi r^2$ is the area of the base of cylinder

$V=A\times h$

$V=28.2\times 3.1$

$V=87.42\ m^3$

So, the volume of the cylinder is $V=87.42\ m^3$ . Hence, this is the required solution.

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