7.1 Introduction

. Introduction The ancient cultures throughout the world sought the idea of measurements for satisfying their daily needs. For example, they had to know how much area of crops needed to be grown in a given region; how much could a container hold? etc. These questions were very important for making decisions in agriculture and trade. They needed efficient and compact way of doing this. It is for this reason, mathematicians thought of applying geometry to real life situations to attain useful results. This was the reason for the origin of mensuration. Thus, mensuration can be thought as applied geometry. Cube Square Pyramid Triangular Pyramid Hexagonal Pyramid Cuboid (Rectangular perllelopiped) Triangular Prism Fig. .