Anusha in wonderland Part-4

When Anusha visited the magic school, there was a grand welcome party for the new principal.  There was also heavy rush of new points and lines for taking admission. Anusha came to know that there were many such schools in that magic world but Anusha ‘s school became famous due to colorful dresses and training given by Anusha in her school. Even the big boys and girls from the school like  triangles, rectangles and polygons wanted such colorful dresses and special training from Anusha.

 Anusha selected clever students from each class and made them teachers. For point and line classes, there was no problem. Anusha had already given them names, colorful dresses and trained them to create beautiful pictures.  But for triangles and higher classes, Anusha herself was not knowing much about them. She thought, she should handle each class one by one. First she chose class of triangles.

When Anusha visited triangles class, she could see many different triangles. Each was having three sides but their lengths were varying.  As such all triangles were of different shapes. There were small triangles and big triangles, Some triangles were slender and flat whereas some triangles were of similar shape but of different sizes.  Anusha asked them to stand in one row and gave them names as t1,t2,t3 and so on.

 Anusha knew how to measure length by using scale. She brought many scales from school store and gave them to all triangles. She taught them how to measure their sides.

Then she  asked all triangles to tell their lengths of all sides and wrote them on blackboard in the form of table. Triangle name, side1 length, side2 length , side3 length.

Triangle Name	Side1 length	Side2 length	Side3 length
t1	10	7	9
t2	6	6	6
t3	5	7	9
t4	8	8	6
t5	5	6	6
t6	10	10	10
t7	12	3	10
t8	5	9	8
t9	8	5	7

She found to her surprise that some triangles have two sides of same length and some triangles to have all three sides of same length.  She formed three different groups of triangles . First group with all sides of different length, second group with two sides of same length and third group with all sides of same length.
She gave names to three groups as normal triangles, similar triangles and equilateral triangles. This was a great exercise. All triangles were happy but everybody got tired.  Fortunately school bell rang  and everybody was free to leave school.

 The bell kept ringing. Anusha woke up. She saw that her alarm clock was ringing. She got up. She has to go to real school now. She decided to learn more about these triangles from her teacher.