Astudent uses the triangle shown to calculate (a). find and explain the student's error.

a=tan^-1(6.5/2.5)=tan^-1(2.6)

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Which polygon is she in the process of constructing ?

Ineed the question and choices are in the