Q28. Explain how in ancient time a day, a month and a year were measured?


Q29. What are the points that should be considered while choosing the most suitable scale for drawing a graph?


Q30. Write down the steps to draw a graph.


Q31. Which of the following distance-time graphs shows a truck moving with speed which is not constant?


                    i.                                                    ii.



                    iii.                                          iv.


Last modified: Sunday, 6 January 2019, 9:06 PM