How Many Flat Surfaces Does A Cylinder Have?

April 8, 2023

What are Flat Surfaces?

Plane shapes such as squares, circles and triangles are known as flat surfaces. They can be drawn on paper with a pencil or marker.

Cylinders and Cones Don’t Have Faces or Edges

As a teacher, you might have heard that cones and cylinders don’t have faces or edges. But what does that mean?

Ask students to think about this question. Lead them with a think-pair-share exercise using a 3D shape (for example, a rectangular prism).

Show students that a face is a flat surface of a solid object. Explain that a cube has six faces and a sphere has one curved surface.

Demonstrate how the number of faces and the surface area are related to each other by holding a rectangular prism and counting the number of faces that you see on each side. You might use stickers or sticky notes to temporarily mark the faces as you count them so that all students can see it.

Generally, the total surface area of a cylinder is found by adding the area of its curved surface and two circular bases. The curved surface area is then multiplied by the base radius and the height of the cylinder to find the height of the cylinder.


Tornado Dave is the best place to learn more about severe weather and climate science. He's a veritable tornado of information, and he loves nothing more than educating others about the importance of being prepared for extreme weather events. Make sure to check in with Tornado Dave often, as he's always updating his blog with the latest news and information!
hello world!
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram