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3 years ago

8

WILL MARK BRAINLIEST AND WILL GIVE POINTS. PLEASE ANSWER AND SHOW YOUR WORK.

1 answer:

Sindrei [870]3 years ago

8 0

one interior angle = 30° <==== this one is given

second interior angle = 180 - 40 = 140° <=== interior angle + exterior angle = 180

third interior angle = 180 - 30 - 140 = 10° <=== angles in a triangle = 180

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