Go the following links and watch both videos! When you are finished with both videos, come back and answer the questions below.
http://learnzillion.com/lessons/2416-label-and-name-points-lines-rays-and-angles-using-math-notation
http://learnzillion.com/lessons/3916-identify-points-lines-line-segments-and-rays
Source: www.learnzillion.com
