Answered

  1. Find the volume of a cylinder that has a diameter of 11 cm and a height of 12 cm.


  1. Find the volume of a cylinder that has a diameter of 21 cm and a height of 12 cm.


  1. Find the volume of a cylinder that has a radius of 6 cm and a height of 15 cm.



4.Find the volume of a cylinder that has a diameter of 23 cm and a height of 25 cm.

Verified Answer :

reinhard10158

Step-by-step explanation:

the volume of any regular 3D shape is

ground area × height

just as simple as that.

the ground area of a cylinder is a circle.

the area of a circle is

pi × r²

with r being the radius (which is half of the diameter).

1.

r = 11/2 = 5.5 cm

volume = pi×(5.5)²×12 = pi×30.25×12 = 1,140.398133... cm³

2.

r = 21/2 = 10.5 cm

volume = pi×(10.5)²×12 = pi×110.25×12 = 4,156.327081... cm³

3.

r = 6 cm

volume = pi×6²×15 = pi×36×15 = 1,696.460033... cm³

4.

r = 23/2 = 11.5 cm

volume = pi×(11.5)²×25 = pi×132.25×25 =

= 10,386.89071... cm³

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