Question

Cont the number of faces, vertices and edges of given polyhedra and verify Euler's formula

Answer 1

Consider given the figure,

Now,

Number of face in 1^st figure=$3+2=5$

Number of face in 2nd figure=$5+2=7$

Number of face in 3^{rd figure} $=6+2=8$

Number of face in 4rt figure $=5+1=6$

Hence, this is the answer.