The two triangles illustrated below are similar. what are the values of x and y?

5/20=x/28 therefor x equals 7 and since the triangles are similar to each other so y =120

First, you must find out what the similarity is between the two triangles to use it as a point of reference for the rest of the equation.
In order to find x, divide 20 by 5, this equals 4. now divide 28 by 4. This equals 7.  So x equals 7. 
Now we need to find y. The angle of the smaller triangle is 120*. Since the triangles are similar, that means the angle is the same for both triangles. So y equals 120*. 
Hope this helps!

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.