If tan=a/b and tan2x=a/a b what is the value of tanx

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?