It seems like you’re referring to a specific product, possibly a geometry ruler set used in schools. The dimensions of the set are provided as 22 x 8 x 0.5 cm, and it appears to…

How to Use the School Maths Geometry Ruler Set

Contents of the Set

• 1 x 15cm Ruler (30mm width)
• 1 x 45-45 Degree Set Square
• 1 x 30-60 Degree Set Square
• 1 x 180 Degree Protractor

Step-by-Step Instructions

Using the 15cm Ruler

1. Place the ruler on the paper or surface where you want to draw or measure a line.
2. Align the ruler’s edge with the starting point of your line.
3. Draw a line along the edge of the ruler or use the markings to measure a specific length.

Using the 45-45 Degree Set Square

1. Place the set square on your drawing surface.
2. Align one edge of the set square with an existing line to draw perpendicular or 45-degree lines.
3. Use the hypotenuse of the set square to draw straight lines at a 45-degree angle.

Using the 30-60 Degree Set Square

1. Position the set square on the paper.
2. Align one edge with an existing line to draw perpendicular, 30-degree, or 60-degree lines.
3. Use the hypotenuse of the set square to draw lines at either a 30-degree or a 60-degree angle.

Using the 180 Degree Protractor

1. Place the protractor on the vertex of the angle you wish to measure or draw.
2. Ensure the baseline of the protractor is aligned with one side of the angle.
3. Read the measurement on the protractor to find the angle or mark a point to draw an angle.

Tips for Effective Use

• Ensure your tools are clean and free from scratches to maintain accuracy.
• Hold the tools firmly to prevent slipping while drawing or measuring.
• Practice using each tool to become more familiar with their functions and applications.