The Triangle Riga Ruler is a drawing tool commonly used in fields such as architecture, engineering, and graphic design. This ruler consists of a triangular shaped plate and is used to draw or measure different angles. Let me explain the features and usage of the 45 cm Triangle Riga Ruler in the measurement you provided: Material and Durability: The Triangle Riga Ruler is usually made of durable plastic or transparent acrylic material. These materials provide a long-lasting and easy-to-use ruler. Triangular Shape: The shape of this ruler is a triangular plate forming a right angle with a 45-degree angle. All three sides are of equal length. Various Uses: The Triangle Riga Ruler is used for drawing and measuring 45-degree angles. It is ideal for forming right angles, drawing parallel lines, drawing triangles, and creating geometric shapes. Use in Architectural and Engineering Drawings: Architects and engineers use this ruler in various technical drawings and plans. For example, it is frequently used to determine 45-degree angles in drawings such as building plans, sections, and details. Use in Graphic Design: Graphic designers can use the Triangle Riga Ruler to create geometric shapes in logos, posters, brochures, and other designs. This ruler helps in creating neat and symmetrical shapes. Dimensions: The Triangle Riga Ruler in the measurement you provided is 45 cm long. This size can be used for a wide range of drawings at various scales and covers the drawing area comprehensively. In conclusion, the 45 cm Triangle Riga Ruler is a versatile tool used in various drawing applications. It is useful in fields such as architecture, engineering, and graphic design for drawing accurate angles and creating geometric shapes.