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Friday, January 25, 2013

Angles and Polygons

Just a quick update on what we have been working on in math. We have actually already tested over this unit, I just haven't posted about it yet!

Looking at polygons- number of sides and vertices match!

Looking at angles:

 Acute angle- an angle less than 90 degrees

 Obtuse angle- an angle greater than 90 degrees

 Right angle- an angle measuring 90 degrees at it's vertex. 

A ray- a line that has endpoint and goes on forever at the other end. In this picture, his elbow is the endpoint and this fingers go on forever.

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