Practical 8 to 12

Practical No.:   12             Date: 31/1/2014                          Pg. No.:___12______

Practical Name: The Percentage of literate males between the ages 15 and 45 in a colony is given. Draw a histogram and frequency polygon.

Software used: Compueter, Geogebra software.

Procedure : 1)   Type the following command in the Input bar Histogram [(15,20,25,30,35,40,45),        (42,38,35,26,16,05)] and press enter key.

        2)    Histogram will be displayed on the Graphic view.

Result/Output:  Histogram and a frequency polygon can be seen on the screen

Practical No.:   11             Date: 31/1/2014                     Pg. No.:___11______

Practical Name: Verify the theorem using GeoGebra. If two circles are touching circles then the common point lies on the line joining their centres.

Software used: Computer, Geogebra software.

Procedure : 1) First Select the Cirlce with Centre through Point tool .Let the centre of the circle be 

                         point A   and move the cursor so that point B lies in a convenient position .

       2)   Then Select the Circle with centre through Point tool. Let  the centre of the circle b.

       3)  Construct the segments AC connecting point A and C using the segment between two 

            Point tool.

Result/Output:  It can be noticed that the common point lies on the line joining their centers

Practical No.:   10                          Date: 31/1/2014                Pg. No.:___10______

Practical Name: Verify the theorem using GeoGebra. The measure of an angle subtended by an arc on the circle is half of the measure of the anglesubtended by the

same arc at the centre.

Software used:  Computer, Software (GeoGebra)

Procedure: 1)            Select the ‘Circle with centre through Point tool’. Click at a point A and then

click at another convenient point B to draw a circle with centre A through point B.

2)         Using the New point tool, add two other points C and D on the circumference of the circle.

3)         Consturct the segments AC, AB, CD and DB by connecting points A, B, C, D respectively using the segment between two point tool.

4)         Select the Angle tool. Click on the segments AB and AC. Similarly click on the segment DB and DC.

Result/Output: It can be noticed that the measure of the angle subtended by an arc at a point

on the circle is half of the measure of the angle subtended by the same arc at

the centre.

Practical No.:   9              Date: 31/1/2014                    Pg. No.:___9______

Practical Name: find the mean, median, mode of the following data 11,25,28,37,65,47,58,59,78,14.

Software used:  Computer, Software (GeoGebra)

Procedure:         1)     In the Input bar, type Mean[11,25,28,37,65,47,58,59,78,14] and press

the enter key. The result of mean will be displayed in the algebra window.

2)         Repeat the first step and type Median[11,25,28,37,65,47,58,59,78,14] Input box. The result of median will be displayed in the algebra window.

3)         Again repeat the first step and type Mode[11,25,28,37,65,47,58,59,78,14] Input box. The result of mode will be displayed in the algebra window.

               

Result/Output: The result of mean median mode will be displayed in the algebra window

Practical No.:   8                               Date: 31/1/2014                 Pg. No.:___8______

Practical Name: Construct a regular polygon with 6 sides using "polygon" tool.

Software used:  Computer, Software (GeoGebra)

Procedure:  
1) Open GeoGebra software , right click on the screen, Click on Axes option to get the clear screen.

2) Select the Circle with Centre through Point tool. Click at a point A and another suitable point B to draw a circle c with centre A through point B.
3) Similarly, draw a circle d through with centre B through point A
4) Intersect the circle with the Intersect Two Objects tool to get the hexagon's vertices C and D
5) Draw a circle with centre C through point A, and centre D through point A
6) Click at the intersection of the circles c and e to get the vertex E and at the intersection of the circles c and f to get the vertex F
7) Using a New point tool, click on the circle to get the vertex G
8) Select the Polygon tool and click on the vertices, other than A,
9) Slect the Angle tool and click inside the hexagon. 
 
       

Result/Output: We will get a regular polygon with the segment value given on the hand side.

Remark: _______________________________________________