Phương trình đường tròn

Phương trình đường tròn

10th Grade

105 Qs

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Phương trình đường tròn

Phương trình đường tròn

Assessment

Quiz

English

10th Grade

Practice Problem

Medium

Created by

Tuyến Trần

Used 5+ times

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105 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Muốn viết được phương trình đường tròn cần?

Tâm I(a;b)I\left(a;b\right) và bán kính RR

Tâm I\left(a;b\right)

Hai điểm

Độ dài bán kinh

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Phương trình đường tròn có tâm O là

x2+y2=R2x^2+y^2=R^2

x2+(y1)2=Rx^2+\left(y-1\right)^2=R

x2+y2=Rx^2+y^2=R

(x1)2+y2=R2\left(x-1\right)^2+y^2=R^2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phương trình đường tròn (C):  (x1)2+(y+1)2=25\left(x-1\right)^2+\left(y+1\right)^2=25  có bán kính bằng?

5

25

50

2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phương trình đường tròn (I):  (x2)2+y2=9\left(x-2\right)^2+y^2=9  có tọa độ tâm là?

 I(2;0)I\left(2;0\right)  

 I(2;0)I\left(-2;0\right)  

 I(0;2)I\left(0;2\right)  

 I(0;3)I\left(0;3\right)  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Phương trình đường tròn tâm  I(1;1)I\left(1;1\right)  và bán kính  R=1R=1  là?

 (x1)2+(y1)2=1\left(x-1\right)^2+\left(y-1\right)^2=1  

 (x+1)2+(y+1)2=1\left(x+1\right)^2+\left(y+1\right)^2=1  

 (x1)2+(y1)2=2\left(x-1\right)^2+\left(y-1\right)^2=2  

 (x+1)2+(y+1)2=2\left(x+1\right)^2+\left(y+1\right)^2=2  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phương trình đường tròn (C): (x3)2+(y+1)2=8\left(x-3\right)^2+\left(y+1\right)^2=8 có bán kính bằng? 

 222\sqrt{2}  

 22  

 232\sqrt{3}  

 3\sqrt{3}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Cho phương trình đường tròn (C): x2+y22ax2by+c=0x^2+y^2-2ax-2by+c=0 có bán kính bằng:

 R=a2+b2cR=\sqrt{a^2+b^2-c}  

 R=a2+b2c2R=\sqrt{a^2+b^2-c^2}  

 R=a2+b2+c2R=\sqrt{a^2+b^2+c^2}  

 R=a2+c2bR=\sqrt{a^2+c^2-b}  

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