The fundamental geometrical concepts depend on three basic concepts — point, line and plane. The terms cannot be precisely defined. However, the meanings of these terms are explained through examples. This chapter talks about a lot of essential topics and 2D shapes. Some of them are points, lines, triangles, quadrilaterals, circles, etc. Enough examples have been given so that students can adequately understand these 2D shapes. Solutions provided here are filled with the latest questions, and their answers explained according to the latest mathematical methods.