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hodyreva [135]
2 years ago
8

Cho tam giác ABC vuông tại C, biết : Góc A = 50 độ. Tính góc B

Mathematics
2 answers:
chubhunter [2.5K]2 years ago
8 0

Answer:

Tổng 3 góc trong 1 tam giác là 180 độ

Vậy góc B = 180 - A - C = 180 - 90 - 50 = 40 độ

koban [17]2 years ago
7 0

C là góc vuông -> C = 90 độ

Trong 1 tam giác, tổng 3 góc = 180 độ

-> Góc B = 180 - 90 - 50 = 40 độ

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