Introduction

From the earlier classes we know that: for a closed plane figure, the perimeter is the distance around its boundary and its area is the region covered by it.

We have also found and worked with the area and perimeter of various plane figures such as triangles, rectangles, circles etc. In area, we have discussed the formulae for rectangular shapes.

In this section, we will be going on further into the perimeter and area of other plane closed figures like quadrilaterals.

We will also discuss the surface area and volume of solids such as cube, cuboid and cylinder, all of which are some of the most commonly seen 3D shapes in our physical world.