There are three types of angles: right angles measure 90 degrees, acute angles measure less than 90 degrees, and obtuse angles measure more than 90 degrees. Right angles are exactly 90 degrees. Acute angles are below 90 degrees. Obtuse angles are greater than 90 degrees.

1. Angles TP
http://blogs.uoregon.edu/aaablog/files/2013/06/500LeadPencilStudioBlog16.jpg
http://upps.global2.vic.edu.au/files/2012/12/IMG_0676-pyjfqj.jpg
https://s-media-cache-ak0.pinimg.com/474x/5a/4e/72/5a4e7244a535cb68f37d359c8d978dc3.jpg
Right angles are 90 degrees. Acute are less than 90 degrees.
Obtuse angles are more than 90 degrees.

2. Right Angles
Measures 90
degrees.
http://www.jeffwaugh.com/wp-content/uploads/2012/03/Canon-Angle-Finder-C-21-204x300.png
http://www.logolalia.com/photoblog/2010/2010-
01-27-e2q-
nature_abhors_a_right_angle_and_being_told_w
hat_to_do.jpg
https://farm3.staticflickr.com/2222/2153994497_e60b3ea324.jpg

3. Acute
http://mathville.mobi/Mathville%20Images/2_2.gjp
Below
90
degrees.
http://eteamscc.com/wp-
content/uploads/2015/02/Angle-Joke.jpg

4. Obtuse
http://homepages.wmich.edu/~drichter/images/stellated120cell/photo08.jpg
http://www.bbc.co.uk/staticarchive/ee20f54ee29e790e6528d4b7d1bb3eaff7091d0f.gif
http://farm4.staticflickr.com/3237/2835308212_f04757a2a9_o.jpg
More than 90
degrees.