Faces, Edges and Vertices
The corners of a solid shape are called its _________; the line segments of its skeleton are called its ___________; and its flat surfaces are its ________. The respective blanks should be filled by:
edges, faces, vertices
vertices, edges, faces
vertices, faces, edges
faces, edges, vertices
Consider the figure (square pyramid mounted over cube):
Let the number of faces be F, the number of edges be E and number of vertices be V.
Then F = V. (True/False)
Consider the net figure of a rectangular pyramid:
Let the number of edges be E and number of vertices be V (in the 2-D figure: take edges as the intersection lines and vertices as intersection points of the lines).Then the value of E + V is 24. True/False?
Find the number of edges in a match-box
If the number of faces, number of edges and number of vertices be F, E and V respectively, then find the value of F+E+V.
- 15 cm
- 9 cm
- 6 cm
- 12 cm