Q. 44.4( 8 Votes )

# Fill in the blanks:

A. A cube has……… vertices, ………….edges and …………..faces.

B. The point at which three faces of a figure meet is known as its…………

C. A cuboid is also known as a rectangular…………..

D. A triangular pyramid is called a..………….

Answer :

A. 8, 12, 6

A Cube has 8 vertices, 12 edges and 6 faces.

A, B, C, D, E, F, G, H are the 8 vertices.

AB, BC, CD, DA, EF, FG, GH, HE, AE, DH, BF, CG are the 12 edges.

ABCD, EFGH, ADHE, BCGF, ABFE and DCGH are the 6 faces

B. vertex

Vertex is the point where faces meets.

A is the vertex for AB, AD and EA.

C. Prism

A cuboid is also known as rectangular prism because a rectangular prism has six rectangular shaped sides with all sides at an angle 90° to each other.

Therefore, it can also be called a cuboid.

D. Tetrahedron

The tetrahedron is a polyhedron with a flat polygon base and the triangular faces that connect the base to a common point. Therefore, it is called a triangular pyramid.

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