What is a Prism? - Rectangular Prisms and Triangular Prisms - Geometry Made Easy!
Welcome to Quatr.us Study Guides!

What is a prism?

Prism

A prism is the solid shape you get if you move a flat polygon through space. A prism has five planes: a top, a bottom, and three sides. The most common kind of prism is a rectangular prism, made by moving a quadrilateral through space: a cube is a common example of a rectangular prism. The next most common kind of prism is a triangular prism, made by moving a triangle through space.

To figure out the surface area of a prism, calculate the surface area of each side and add them together. On a rectangular prism, each rectangular side is congruent (the same size) with the another one parallel to it.

On a triangular prism, three of the sides are rectangles, and two of them are triangles. At least two of the rectangles are congruent, and the two triangles are also congruent.

To figure out the volume of a triangular prism, think of the prism as a rectanglar solid sliced in half. So you multiply the length by the height by the thickness, and then divide the result in half.

One useful thing that is in the shape of a triangular prism is a camping tent. Why might you need to know the volume of a tent? The attic of a house might also be in the shape of a triangular prism.

More about Geometry

Bibliography and further reading about geometry:

More about Geometry
More Easy Math
Quatr.us home


Celebrating Black History Month with the pharaoh Hatshepsut, the queen Shanakdakhete, the poet Phillis Wheatley, the medical consultant Onesimus, the freedom fighters Toussaint L'Ouverture, Denmark Vesey, Yaa Asantewaa, and Samora Moises Machel, and the civil rights leader Martin Luther King, Jr.
Please help other teachers and students find us: link to this page from your class page.
Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram or Twitter.
Cite this page
  • Author: K.E. Carr
  • Title:
  • Site Name: Quatr.us Study Guides
  • Publisher: Quatr.us
  • Date Published:
Proud of your class page, homework page, or resource page? Send it in and win a Quatr.us "Great Page!" award!
Sign up for more free articles and special offers in Quatr.us' weekly newsletter:
We will never share your e-mail address unless you allow us to do so. View our privacy policy. Easy unsubscribe links are provided in every email.
Comment on This Article

Cool stuff we've been enjoying: Looking for birthday gifts? Check out these new Chromebooks - all the computer you need for only $229.00!. Then study in peace with these Beats wireless headphones - for the exact same price! When you're done, show off your presentation or watch a movie with this excellent smartphone projector for only $39.99!


Does your class page honor diversity, celebrate feminism, and support people of color, LBGTQ people, and people with disabilities? Let us know, and we'll send you a Diversity Banner you can proudly display!
Looking for more?
ADVERTISEMENT
Quatr.us is loading comments...
(Comments will appear after moderation, if they are kind and helpful. Feel free to ask questions, and we'll try to answer them.)
Cite this page
  • Carr, K.E. . Quatr.us Study Guides, . Web. 26 February, 2017
ADVERTISEMENT