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 * Aim: What are the special properties of the special right triangles?


 * To begin, we will need to review the special right triangles: 45-45-90 and 30-60-90. You will watch two videos to refresh your memory on the special relationships.


 * Be sure to take notes so you will have something to refer to.


 * 30-60-90 right triangles video

[|30-60-90 triangles]

[|Video 2]


 * 45-45-90right triangles

[|45-45-90 video] [|Video 2]

Find the value of the six trig functions for a 30 degree angle, a 60 degree angle, and a 45 degree angle. Be sure all of your anwers are in simplest radical form.
 * Class work


 * Journal entry: Speculate why the special right triangles discussed in today's lesson are important in the real world.