Để chuẩn bị cho hội trại do Đoàn trường tổ chức, l...
Câu hỏi: Để chuẩn bị cho hội trại do Đoàn trường tổ chức, lớp 12A dự định dựng một cái lều trại có dạng hình parabol như hình vẽ. Nền của lều trại là một hình chữ nhật có kích thước bề ngang 3 mét, chiều dài 6 mét, đỉnh trại cách nền 3 mét. Tính thể tích phần không gian bên trong lều trại.![](data:image/png;base64,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)
A. 72
B. \(72\pi\)
C. 36
D. \(36\pi\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Chuyên Hưng Yên lần 3