Mathematics, 29.07.2021 14:00 teescub9738

Cho hình lăng trụ đứng ABC. A'B'C' có đáy ABC là tam giác vuông cân tại A, AB = a, AB' hợp với đáy một góc 60°. Tính thể tích của khối lăng trụ ABC. A'B'C'.

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Cho hình lăng trụ đứng ABC. A'B'C' có đáy ABC là tam giác vuông cân tại A, AB = a, AB' hợp với đáy m...

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