Polygon (Definition, Types, Formula & Solved Examples)- long nose pliers definition and uses examples of data based ,Polygon. A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. The line segments of a polygon are called sides or edges. The point where two line segments meet is called vertex or corners, henceforth an angle is formed.24 Types of Sensors - Simplicable22/10/2016· A sensor is a device that can represent aspects of the physical world as data in real time. There are thousands of different types of sensors that are used in scientific equipment, electronics, transportation, robotics, security devices and infrastructure such as smart cities.