You can
put this solution on YOUR website!An example of a square pyramid from Wikipedia's Wikimedia: http://upload.wikimedia.org/wikipedia/en/thumb/5/53/Square_pyramid.png/240px-Square_pyramid.png
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Hello,
Do you know what a base is? It is lower side of a figure where the face is completely flat. For example, in a square, all the faces are bases because a square will remain upright regardless of the base.
Want to take an educated guess?