giải tam giác - tính diện tích tam giác toán 10
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•15 Qs
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giải tam giác - tính diện tích tam giác toán 10
Quiz
•
Mathematics
•
10th Grade
•
Hard
Minh Trang
Used 15+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hình tam giác vuông có 1 cạnh góc vuông giảm đi 3 lần và cạnh góc vuông còn lại tăng lên 3 lần, khi đó diện tích hình tam giác vuông mới
Không thay đổi
Tăng 3 lần
Giảm 6 lần
Giảm 3 lần
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho ΔABC có a=6, b=8, c=10. Diện tích S của tam giác trên là:
12
48
24
30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ΔABC thỏa mãn: 2cosB=√.2 Khi đó: số đo góc B bằng
450
300.
600
750
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ΔABC vuông tại B và có C=250. Số đo của góc A là:
A=600
A=650
A=1550
A=750
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho ΔABC có B=600,a=8,c=5. Độ dài cạnh b bằng:
129
7
49
√129
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ΔABC có C=45o,B=750. Số đo của góc A là:
A=65o
A=70o
A=75o
A=600
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho tam giác ABC, biết a=24,b=13,c=15. Tính góc A?
33034'.
28037'.
117049'
58024'.
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