Q. 74

# Find the number of faces in the given shapes:

Answer :

for figure given below:-

number of faces are 14

for the above figure, the number of faces are 10

for the above figure, the no of faces are 16

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A polyhedron has 20 faces and 12 vertices. Find the edges of the polyhedron.

NCERT - Mathematics ExemplarHow many faces are there in a

A. cube

B. pentagonal prism

C. tetrahedron

D. pentagonal pyramid?

RS Aggarwal - MathematicsHow many vertices are there in a

A. cuboid

B. tetrahedron

C. pentagonal prism

D. square pyramid?

RS Aggarwal - MathematicsUsing Euler’s formula find the unknown:

Verify Euler's relation for each of the following:

A. A cube

B. A tetrahedron

C. A triangular prism

D. A square pyramid

RS Aggarwal - MathematicsWrite down the number of vertices of each of the following figures:

A. Cuboid

B. Square pyramid

C. Tetrahedron

D. Triangular prism

RS Aggarwal - MathematicsWrite down the number of edges of each of the following figures:

A. Tetrahedron

B. Rectangular pyramid

C. Cube

D. Triangular prism

RS Aggarwal - MathematicsHow many edges are there in a

A. cuboid

B. tetrahedron

C. triangular prism

D. square pyramid?

RS Aggarwal - Mathematics