Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions for Mathematics

A polyhedron can have 10 faces, 20 edges and 15 vertices.

Complete the table given below:

S.No	Solid	Shape of Solid	Number of faces F	Number of Verticles V	Number of edges E	F + V	E + 2
a.	Cuboid
b.	Triangular Pyramid
c.	Square Pyramid
d.	Rectangular Pyramid
e.	Pentagonal Pyramid
f.	Hexagonal Pyramid
g.	Triangular Prism
h.	Square Prism
i.	Cube
j.	Pentagonal Prism
k.	Octagonal Prism
l.	Heptagonal Prism

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

Using Euler’s formula, find the value of unknown x in the following table.

Using Euler’s formula, find the value of unknown y in the following table.

Using Euler’s formula, find the value of unknown z in the following table.

Using Euler’s formula, find the value of unknown p in the following table.

Using Euler’s formula, find the value of unknown q in the following table.