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Standard 10: Practical No 7 - b

Practical No 7 b: To Draw an angle with 133 degrees measurement and to bisect it.


Only the diagram given in the Output Section should be printed and put in the Journal.

The figures given in the Procedure are only for your understanding.


Aim

To Draw an angle with 133 degrees measurement and to bisect it.

Theory

Geogebra has dual representation namely the Geometric View and the Algebraic View. One can construct or modify geometric figures in the geometric section and observe details about the constructed figures in the Algebraic Section. Furthermore constructions can also be performed by typing in the appropriate command in the Input Box.

Tools

  1. Angle with given size

  2. Segment through two points

  3. Angle Bisector Tool.

Procedure

1. Open Geogebra. Click on Tool No 7 and select ‘Angle with given size’. See Figure 1.

See Figure 1.

2. In the Graphic area click on any place where you want one arm (Point ‘A’) of the angle to be.


Figure 1

3. Click on any other point where you want the vertex to be. (Point ‘B’)

4. In the box that comes up enter the measure of the angle that you want e.g., 133o.

See Figure 2.


Figure 2

5. Click OK. The angle of the required measure will be drawn.

See Figure 3.


Figure 3

6. Click on Tool 2 and select ‘Segment through two points’.

See Figure 4.


Figure 4

7. Click on the points A followed by B. Then click on the points B followed by A’.

See Figure 5.

8. The given angle will be drawn.


Figure 5

9. Select Tool 3 and click on ‘Angle Bisector Tool’.

See Figure 6.


Figure 6

10. Click on points A followed by B and A’. The required angle bisector will be drawn.

See Figure 7.

11. Save and print your file if required.


Figure 7

Output


Final Figure

Conclusion

Thus we have drawn an angle of 133o and bisected it.