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Triangles


1.  What rules do you know about triangles?

2.  Write what you know about triangles.   

Use some of these items in your answers

180 degrees       obtuse          complement

supplement            acute

90 degrees                         less than 90                 more than 90


three sides                can  3   6   9 be a triangle?   (those are the lengths of the sides of the triangle)

can    2    5   1  be a triangle?

What's the area of the triangle?           What is special about   30-60-90?     45-45-90?

SOH CAH TOA
(not on the PSAT...)


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