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Ivan
3 years ago
6

Another question about angles

Mathematics
1 answer:
zvonat [6]3 years ago
3 0

Answer:

ㄥBEC=70;ㄥABE=160

Step-by-step explanation:

(x-5)+(3x-5)+90=180

x-5+3x-5+90=180

4x+80=180

4x=100

x=25

ㄥBEC=3*25-5=70

ㄥABE=180-(25-5)=160

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