Qstnid -3- State, The Number Of Faces, Number Of Vertices And Number Of Edges Of: (I) (A) Pentagonal Pyramid (Ii) (A) Hexagonal Prism (I) (A) Pentagonal Pyramid (Ii) (A) Hexagonal Prism - 19: Representing 3-d In 2-d Class 8 Maths - Icse-viii-mathematics

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ICSE-VIII-Mathematics

19: Representing 3-D in 2-D Class 8 Maths

with Solutions -

Qstn# 3 Prvs-Qstn Next-Qstn

#3
State, the number of faces, number of vertices and number of edges of: (i) (a) pentagonal pyramid (ii) (a) hexagonal prism (i) (a) pentagonal pyramid (ii) (a) hexagonal prism
Ans : (i) A pentagonal pyramid
Number of faces = 6
Number of vertices = 6
Number of edges = 10 (ii) A hexagonal prism
Number of faces = 8
Number of vertices = 12
Number of edges = 18 (i) A pentagonal pyramid
Number of faces = 6
Number of vertices = 6
Number of edges = 10 (ii) A hexagonal prism
Number of faces = 8
Number of vertices = 12
Number of edges = 18

#3-i
(a) pentagonal pyramid
Ans : A pentagonal pyramid
Number of faces = 6
Number of vertices = 6
Number of edges = 10

#3-ii
(a) hexagonal prism
Ans : A hexagonal prism
Number of faces = 8
Number of vertices = 12
Number of edges = 18