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Measurement of Segments and Angles - Lesson 1-2

Hello again...today, we all got our "tools of geometry!"  That would be that thing I gave you that has a straight edge (for measuring segments), a protractor (for measuring angles), and a compass (for constructing circles and arcs of circles).  We then practiced using the various parts of this tool to measure segments and angles.  You should remember the following, paying particular attention to the symbology!

We then discussed how we classify angles by their measure:

At this point, we moved on to some new material...something you didn't do in 4th grade!  It had to do with how we measure angles to a degree of accuracy better than degrees:

We also discussed how to convert from fractional degrees to degrees, minutes, and seconds form and vice versa.  Make sure you can do these types of problems for the quiz and test!!

We also learned how to add and subtract angle measures in degrees, minutes, and seconds form.  Here’s an example:

We ended by learning the definitions for congruent segments and congruent angles and learning what symbols to use in association with them: