a cylinder has two faces that are circles
A solid with six congruent square faces is a cube.
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A square is not a solid figure at all. It's a flat figure, with four congruent faces and four congruent angles.
cylinder
A cube
Isosceles TetrahedronA solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.
cylinder
It is a cylinder
A cube has three pairs of parallel faces and all faces are congruent.
cube!!
cube