Answer :

Answer:

It is 51

Step-by-step explanation:

because you have to add the 80 and 49 them you will get 129 and then subtract 180 by 129 then you will get your answer

Answer:

51°

Step-by-step explanation:

Sum of angles in a triangle is supplementary,

x + 49° + 80° = 180°

x + 129° = 180°

x = ( 180 - 129 )

x = 51°

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