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3 years ago

Helllllllpppppp me plz

Mathematics

2 answers:

Genrish500 [490]3 years ago

5 0

Answer:

90 degrees

Step-by-step explanation:

liberstina [14]3 years ago

4 0

Answer:

x=103

Step-by-step explanation:

sum=(n-2)*180

sum=(6-2)*180

sum=4*180

sum=720

90+155+112+120+140+x=720

617+x=720

x=720-617

x=103

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