Page 66 - Concepts of Reasoning-8

Worksheet-13.3

Prisms and Pyramids, Euler’s Formula and Maps

1. Match the following. One has been done for you :

Nets Name of the solid Rough sketch

Rectangular prism

Triangular Pyramid

Pentagonal Prism

Triangular Prism

Pentagonal Pyramid

2. Draw the cross sections of the following solids :

a. Triangular Pyramid b. Triangular Prism

c. Pentagonal Prism d. Pentagonal Pyramid

3. Complete the following table :

Name of the solid Faces (F) Vertices (V) Edges (E) F + V – E = ?

Pentagonal pyramid
Pentagonal prism

Triangular prism

Hexagonal prism

66 Reasoning - 8