Theory:
We see a lot of objects with different shapes and sizes around us.
We have also learnt about different shapes and their names in the earlier classes.
It is easy to draw a rough figure of a geometrical shape.
But how do you think shapes of specific measurements get constructed?
For that matter, we use specific geometric tools.
Nowadays, a geometry box comes with all the geometrical tools necessary.
Let us now look at each of the tools in detail.
Name | Tool | Description | Use |
A ruler |  | A rectangular tool with measurements on it. The measurements are in centimetres, millimetres and inches. | To draw a line segment with exact measurements. To measure lengths. |
A compass |  | A tool with two ends. There is a pencil on one end, while the other is a pointy end. | To construct line segments, figures and so on. |
A divider |  | A tool similar to the compass. Unlike the compass, it has two pointy ends. | To divide a line segment into many equal parts. |
Set squares |  | Two triangular tools. One has the angles \(45^\circ\), \(45^\circ\), and \(90^\circ\) at its vertices, while the other has the angles \(60^\circ\), \(30^\circ\), and \(90^\circ\) at its vertices. | To draw both perpendicular, and parallel lines. |
A protractor |  | A semi-circular tool. It has measurements from \(0^\circ\) up to \(180^\circ\). | To draw and measure angles. |