Ôn tập toán 7 lên 8
Authored by Cai Long
Mathematics
7th - 8th Grade
Used 9+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đơn thức 4x73x2 thu gọn bằng:
A. 7x14
B. 12x14
C. 7x9
D. 12x9
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đa thức Q (x) = ax2 + 5x - 2 có một nghiệm là 1, hệ số a của đa thức là:
A. 3
B. -3
C. -7
D. 7
A
B
C
D
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Nghiệm của đa thức P(x) = x2 + 5x - 6 là:
A. - 6
B. -1
C. 1
D. 6
Lưu ý có thể chọn nhiều đáp án
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tam giác ABC vuông tại A, mệnh đề đúng là:
A. BC2 + AC2 = AB2
B. AB2 = AC2 - BC2
C. AC2 = BC2 + AB2
D. AB2 +AC2 = BC2
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong một tam giác trọng tâm của tam giác là điểm chung của:
A. Ba đường trung tuyến
B. Ba đường phân giác
C. Ba đường trung trực
D. Ba đường cao
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho tam giác ABC có Â=500 ; = 600 ; Ĉ = 700 trong các khẳng định sau, khẳng định đúng là.
A. AC > AB > BC
B. AB > AC > BC
C. BC > AB > AC
D. AB > BC > AB
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho G là trọng tâm của tam giác ABC; AM là đường trung tuyến hãy chọn khẳng định đúng.
AG/AM=1/2
GM/AM=1/3
AG/GM=3
GM/AG=2/3
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