If a figure is square then it is a regular quadrilateral is is true or false explain?

True. A regular quadrilateral is a shape that has 4 equal sides and 4 equal angles. The proportions of a square fulfill these requirements, because by definition, a square has 4 equal sides and thus 4 equal angles (90 degrees each).

Zero is the mid point of the line segment

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.