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Answer:
3x-13+2x+4=116( the sum of two interior angle is epual to the sum of exterior angle )
5x =116-9
5x=107
x=21.4 degree
then
angle a= 3*21.4-13
a=51.2degree
angle b=2*21.4+2
b =44.8degree
Step-by-step explanation:
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Because 1/2 of 6 =1/3 and 1/2×1/3=1/6
Multiply using the distributive property so it would be 5x+60