3 years ago

Math question.......

Mathematics

2 answers:

MAXImum [283]3 years ago

8 0

Answer:

x=54

Step-by-step explanation:

easy

180 is a triangle

exterior+interior=180

so 180-123

now add all up to 180

180=57+x+69

x=54

GarryVolchara [31]3 years ago

6 0

9514 1404 393

Answer:

Step-by-step explanation:

The sum of the interior angles marked is the same as the marked exterior angle. Then the unknown is the difference of the known angles:

x° = 123° -69°

x° = 54°

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