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Musya8 [376]
3 years ago
5

Triangle sum theorem i will give brainliest

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0

Answer:

∠A + ∠B + ∠C = 180°

⇒ 25° + 27° + ∠B= 180°

⇒ 52° + ∠B= 180°

Subtract both sides by 172°

⇒ 52° – 52° + ∠B = 180° – 52°

Therefore, ∠B = 128°

AveGali [126]3 years ago
6 0

Answer:

The answer is b=128

Step-by-step explanation:

25+27=52

180-52=128

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