Question 1144547
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Since AR bisects the angle CAB,  m(CAB) = 2*m(CAR).


In other words,


    72 = 2*(4x-8).


Simplify and find x


    72 = 8x - 16

    72 + 16 = 8x

    88 = 8x

     x = 88/8 = 11.


<U>ANSWER</U>.  x is 11 degrees.
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