Question

The formula for the volume of a cylinder is V=πr2h What is the approximate volume of two refraction cups? Use 3.14 for pi.

Answer 1

Given:

The height of the refraction cup is

`h=2cm`

The radius of the refraction cup is

`\begin{gathered} r=(d)/(2) \\ =(8)/(2) \\ =4cm \end{gathered}`

Required:

To find the volume of the refraction cup.

Step-by-step explanation:

The volume of the half cylinder is

`V=(1)/(2)\pi r^2h`

Now

`\begin{gathered} V=(1)/(2)*3.14*4^2*2 \\ \\ =50.24cm^3 \end{gathered}`

Final Answer:

The volume of the given refraction cup is,

`V=50.24cm^3`