A pyramid is a four-sided, three-dimensional figure.
triangle
An octahedron. It has three axis.
to be a three sided shape
a three sided polygram
Cirques
TRIANGLESthey are cirques
Fjords
i had a class assignment and the answer is fjords
In steep sided, snow covered mountain valleys.
i had a class assignment and the answer is fjords
a deep, steep-sided, narrow river valley
Three Men from Three Valleys - 2009 was released on: USA: 1 January 2009 (Chicago, Illinois)
glaciated valleys
Wow, really... a pyramid is three sided and it has been used as a tomb. (technically it's 4 sided, three sides and a bottom, but that's as close as your going to get to a three sided tomb, especially in geometry...)
There are several valleys in Chile. Some are bigger than others. Three are the Lutha, Codpa, and Azapa Valleys.
i am not sure, but i think it is 4 sided.