Cho tam giác ABC có trực tâm H(1;1), phương trình cạnh AB: 5x-2y+6=0, phương trình cạnh AC: 4x+7y-21=0, thì phương trình cạnh BC là

ĐỀ KIỂM TRA THỬ GIỮA KÌ 2 LỚP 10 (ĐỀ 3)

Quiz
•
Mathematics
•
1st - 12th Grade
•
Hard
Hương Nguyễn
Used 7+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x-2y-14=0
x-2y+14=0
x+2y-14=0
4x+2y+1=0
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
28
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho tam giác ABC có BC=5. AB=9, cosC=-1/10. Tính độ dài hạ từ đỉnh A của tam giác ABC
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
[-3;15]
Đáp án khác
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho đường thẳng d: x=2+t, y=-3t và đường thẳng d': 2x+y-5=0. Tìm tọa độ giao điểm M của 2 đường thẳng
(-1;-3)
(3;1)
(3;-3)
(1;3)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cho tam giác ABC có AB=c, BC=a, CA=b, bán kính đường tròn ngoại tiếp là R. Trong các mệnh đề sau, mệnh đề nào sai
b=2RsinA
c=2RsinC
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