Which of the following is a triangular pyramid having all the faces as equilateral triangle?

Which of the following does not have triangular faces?A.OctahedronB.TetrahedronC.IcosahedronD.Hexahedron

Which solid figure has a base that is a polygon and triangular faces that meet at a vertex?A.PrismB.CylinderC.PyramidD.Cone

Which of the following shapes is a face of this hexagonal prism?

Which choice represents the shapes of the faces of a square pyramid? A. two squares and four isosceles triangles B. a square and four isosceles triangles C. a square, two isosceles triangles, and two rectangles D. two squares and four rectangles

Which of the following are polyhedrons?Check all that apply.A.ConeB.PrismC.CylinderD.Pyramid