Mensuration

This chapter deals with the concept of the sector of a circle and the length of an arc. It derives the formulae to find the diameter, circumference, area, and sector of a circle. It also teaches us how to find the area of a circular path.

In this chapter, we will learn about the surface area and volume of 3D objects such as cubes and cuboids. It explains the formulae to find the surface area and volume of a cube and a cuboid. It provides some examples that use these formulae.