Class 6 Maths Practical Geometry Introduction

Introduction

This chapter deals with methods of drawing geometrical shapes.

To draw these shapes, various instruments are used. One of the basic instruments is a ruler. A ruler in an instruments box is graduated into centimetres along one edge (and sometimes into inches along the other edge).

Another instrument that is commonly used is a compass.

Compass is a pair – a pointer on one.To mark off end and a pencil on the other. It is used to draw arcs and circles.

Using the ruler and compasses, the following constructions can be made:

  • A circle, when the length of its radius is known.

  • A line segment, if its length is given.

  • A copy of a line segment.

  • A perpendicular to a line through a point

1. On the line

 

2. Not on the line.

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