Class 6 • Mathematics • Chapter 14
Practical Geometry
Learn how to use geometrical instruments and construct line segments, circles, angles and perpendicular lines accurately.
Learn the Basics
Important Concepts
Learn practical geometry step by step.
Geometrical Instruments
Learn how rulers, compasses and protractors are used for accurate geometrical constructions.
Drawing a Line Segment
Learn how to construct a line segment of a given length using a ruler.
Constructing a Circle
Use a compass to draw circles with a given radius.
Perpendicular Lines
Understand how to construct a line perpendicular to a given line.
Angles
Learn how a protractor is used to construct and measure angles.
Geometrical Constructions
Follow construction steps carefully to create accurate geometrical figures.
Geometry Toolkit
Important Instruments
Ruler
Used to measure and draw line segments.
Compass
Used to draw circles and transfer distances.
Protractor
Used to measure and construct angles.
Set Square
Useful for drawing perpendicular and parallel lines.
Understand with Examples
Construction Examples
Line Segment
Example: AB = 6 cm
Circle
Radius can be set using a compass.
Angle
A protractor helps construct accurate angles.
Step-by-Step
Constructing a 60° Angle
Draw a ray AB.
Place the protractor at A.
Mark 60° carefully.
Draw the second ray through the mark.
Quick Notes
Remember These Points
- • Use a ruler to measure and draw line segments.
- • Use a compass to draw circles and transfer distances.
- • Use a protractor to measure and construct angles.
- • Keep the instruments steady while making constructions.
- • Follow construction steps in the correct order for accurate results.
Practice
Practice Questions
Draw a line segment of length 6 cm using a ruler.
Draw a circle with radius 4 cm using a compass.
Construct an angle of 60° using a protractor.
Draw a line perpendicular to a given line.
Construct an angle of 90°.
Name three instruments commonly used in geometrical constructions.
Test Yourself
Revise geometrical instruments and construction steps before taking the quiz.