All the Triangle , Circle , Square, and Rectangle are plan figure . The total length of the boundary lines of plan figure is called its perimeter. This note give information about the perimeter of solid figures .

The plane surface enclosed by the boundary line of a plane closed figure is known as its area . The area is always measured in the square unit. For example,cm2 , mm2,m2etc . This note gives information about different solid figure and also its formula.

This note gives information about, Cylinder, Cone ,Cube ,Tetrahedron, and Octahedron.

Some an example of solids is like , Cube , cuboid , sphere , cone , pyramid , etc. Length , breadth, and height are three dimensions of solid objects .This note gives information about the volume and area of a cuboid and another solid figure also .