A side of a solid figure is called a face.
enneahedron
decahedron
the solid figure with six congruent sides isva cube
sides of the solid figure
A solid figure with six sides could be a rectangular prism.
It is not a solid figure because an icosagon is a polygon with 20 sides
A ten sided figure is called a Decagon. ( i think that's how you spell it. )
a crescent
A cube.
Solid 3D figures are called polyhedrons. To figure out what a polyhedron with a specific number of sides is, you take the Greek prefix for the number of sides, and add the suffix "-hedron" at the end: tetra=4, so it would be called a tetrahedron if it has 4 sides. penta=5, so pentahedron. hexa=6, hepta=7, octa=8, ennea=9, deca=10 So your figure would be called a decahedron. I hope this helps ^-^ ~제니치
A Triangular Pyramid
CUBE