**Cylinder Prism**

The formulas needed to find the surface area of a cylinder are:

A = πr²

C = πd

D = r x 2

The formulas needed to find the surface area of a triangular prism are:

A = b x h / 2

The formula needed to find the surface area of a rectangular prism is:

^ For this video, in the last 25 seconds of it there is static. I don't know what that is, but whenever the video was recorded, there was always static. I apologize for that.

I'm sorry if my pictures are too small, but please leave a comment behind, and please let me know if I made errors. :)

## 2 comments:

Good Job! I understood your post and the picture helped me understand. Your work was very clear and your work was colourful too. Good Job!

Great job Q. I like the initiative to do your own videos at youtube. Great way to do it when the ustream is not available. congrats and great post.

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