Aman standing near a radio station antenna observes that the angle of elevation to the top of the antenna is 64 degrees. he then walks 100ft further away and observes that the angle of elevation to the top of the antenna is 46 degrees. find the height of the antenna to the nearest foot.

So hmm notice the picture below

thus  

make sure your calculator is in Degree mode, since the angles are in degrees

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.