Because the surface areas of 3-d figures are two-dimensional and their measures require square units.
Because the surface areas of 3-d figures are two-dimensional and their measures require square units.
Because the surface areas of 3-d figures are two-dimensional and their measures require square units.
Because the surface areas of 3-d figures are two-dimensional and their measures require square units.
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Because the surface areas of 3-d figures are two-dimensional and their measures require square units.
A three dimensional solid figure looks like a cube or a prism. Pyramids are three dimensional solid figures as well.
Because the base of a cone is round, it is the only three dimensional figure with only one vertex.
a solid figure
Tetrahedron has three sides and a base all triangular.
square