Question

- Consider the given figure (Fig. 14.4). It shows a cube
surmounted by a pyramid.
How many faces, edges and vertices does it have?
Name its edges, faces and vertices. Also state the faces which
are triangles and which are squares.
Fig. 14.4​

Answer 1

Answer:

Where is the figure.......

Answer 2

- Consider the given figure (Fig. 14.4). It shows a cube  surmounted by a pyramid.

Faces

Total number of faces will be 9, as the face ABCD won't be visible.

ABEF, CDGH

EFGH

ADHE, BCGF

AOB, BOC, COD, DOA

Edges

Total number of edges will be 16. They are:

AB, CD, EF, GH

AE, BF, CG, DH

AD, BC, EH, FG

OA, OB, OC, OD

Vertices

Total number of vertices will be 9. They are:

A, B, C

D, E, F

G, H, O