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avanturin [10]
3 years ago
6

Please help and explain the work​

Mathematics
2 answers:
viktelen [127]3 years ago
5 0

Answer:

x=97

Step-by-step explanation:

first find the angle measure to the right of 139

180-139=41

the sum of a triangles angles must be 180

so 180-42-41=x

x=97

lys-0071 [83]3 years ago
5 0

Answer:

97

Step-by-step explanation:

To find the exterior angle would be to add the other 2 interior angles.

(42+x=139) so to find x you would just have to subtract the interior from the exterior. (139-42=x or 97)

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