All the shapes we see around us are formed using curves or lines. Since childhood, we are watching several Elementary shapes like corners, edges, planes, open curves and closed curves in our surroundings. We organise them into line segments, angles, triangles, polygons, and circles. We can see that they do not have the same measure. The chapters contain detailed explanations for all types of elementary shapes. The chapter includes a lot of examples explaining all basic elemental shapes such as line segments, angles, perpendicular lines, etc. Solutions are provided for some new type of questions too.