#14 & #16 find the value of x. Then classify the triangle by its angles.

Algebra
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Dec 2nd, 2014

14 : 60 + 60 + x = 180

       x = 180 - 60 - 60

       x = 180 - 120

       x = 60 degree

16 :  64 + 74 + interior angle = 180

        interior angle = 180 - 74 - 64

        interior angle = 180 - 138

        interior angle = 42 degree

 now 

x = 180 - 42

x = 138 degree

Dec 2nd, 2014

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