Question

The formula for the volume of a cylinder is V=pi r*2h What is the approximate volume of two refraction cups? Use 3.14 for pi.

Answer 1

`V_2 = 200.96cm^3`

Step-by-step explanation:

Given

`V = \pi r^2h`

See attachment for refraction cup

Required

The volume of the cup

From the attached image, we have:

`h = 2` --- height of the cup

`d = 8` --- diameter of the cup

Calculate the radius

`r = 0.5 * d`

`r = 0.5 * 8`

`r = 4`

Calculate the volume of 1 cup

`V = \pi r^2h`

`V_1 = 3.14 * 4^2 * 2`

`V_1 = 100.48`

The volume of 2 is 2 multiplies by the volume of 1

So, we have:

`V_2 = 2 * V_1`

`V_2 = 2 * 100.48`

`V_2 = 200.96cm^3`