Volume of Cylinders: Find V w/ Pi r2h

[Kirito123]

Homework Statement

Homework Equations

V= Pi R²H

The Attempt at a Solution

V = Pi r2h

They gave us the radius and the height (the length can be used as height). They Diameter is 0.9 to find the radius I just divide by 2 = 0.45. So now I find the volume of the cylinder using the formula “V= Pi r2h”. V= 3.14 x 0.2035 x 3.6 = 2.28906 now we divide by 2 since its half a cylinder. So now we do 2.28906 / 2= 1.14453 m3, so the tunnel can hold 1.14453 m3 of air.
(Pretty sure I got this right just want to confirm with others.)

 

[andrewkirk]

Yes that looks right to me.

 

[Kirito123]

kk thanks