To draw a unique quadrilateral, we need at least five measurements of sides and angles. However, it is not necessary that we will get a unique quadrilateral if we have the measurements of any five combinations of sides and angles. Practical Geometry is used to construct figures. To construct them, we use different tools. Important topics and concepts covered in the Chapter Practical Geometry: 1 Introduction 2 Constructing a Quadrilateral 2.1 When the lengths of four sides and a diagonal are given 2.2 When two diagonals and three sides are given 2.3 When two adjacent sides and three angles are known 2.4 When three sides and two included angles are given 3 Some exceptional cases.