Lesson: Geometry Challenging - 19t01

Cylinders

[Page 19 of 32]

A cylinder is a uniform solid with two opposing circular faces. The surface area between the faces is the lateral area. This lateral surface area of a cylinder is equal to the circumference of the cylinder times the distance between the faces.

To find the volume of a cylinder, find the area of one of its circular faces, and multiply it by the distance between the faces.

Task: If a cylinder has a radius of 8, and the distance between its circular faces is 20, what is its volume? Volume = 1280Π

The volume is the area of one circular face times the distance between the circular faces. The area of the face is times 8 squared, so we have .

Countinue

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