Chapter 12.1, Problem 1ACYP

To determine

The name of figure base, face, edge and vertices.

Answer to Problem 1ACYP

Bases: $BCD$

Faces: $BCD,BAC,BAD,CAD$

Edges: $\overline{BA},\overline{AD},\overline{DC},\overline{BC},\overline{BD},\overline{AC}$

Vertices: $A,B,C,D$

Explanation of Solution

Given:

The figure name is the figure has one triangular base and sides that are all triangles. The figure is a triangular pyramid.

Bases: $BCD$

Faces: $BCD,BAC,BAD,CAD$

Edges: $\overline{BA},\overline{AD},\overline{DC},\overline{BC},\overline{BD},\overline{AC}$

Vertices: $A,B,C,D$

Conclusion:

Hence, the identifications and the details are mentioned above.