horse0207lover horse0207lover

26-01-2021
Mathematics

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triangle sum theorem
i will give brainliest

triangle sum theorem i will give brainliest class=

Respuesta :

zfranks05 zfranks05

26-01-2021

Answer:

The answer is b=128

Step-by-step explanation:

25+27=52

180-52=128

Answer Link

johnkayle17 johnkayle17

26-01-2021

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°

Answer Link

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