Blog Post

By: Veronica Macabeo 8A

December 12, 2014

Good morning fellow classmates, I will be presenting about what we are learning in math. In math, we are learning about how to calculate the surface area of a 3D object such as a cube or triangular prism. I will only be showing you how to calculate the surface area of a rectangular prism, because it would take me a long time to explain them both. For the beginning, you would have to either draw a net of the shape (which is a diagram of the shape flattened out) or draw faces of the top/bottom, both sides, and the front and back. Then you would measure the vertices of the faces. After you would make columns like f/b, s/s, and t/b. Under those you would put an ‘A’ for area and an equal sign then ‘LxWx2’ which is Length x Width x 2.

That would be the first ‘A’. For the second ‘A’, you would already have the measurements you need. So then you would take the two measurements, times them together, and then times them by 2 (since there’s two faces). And lastly, the third ‘A’ would just be the answer to the two measurements multiplied by each other and by 2. Thank you for listening and I hope you enjoyed my blog post.