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Ulangan harian Persamaan lingkaran

Authored by Sri Pargiyati

Mathematics

KG - 1st Grade

Used 10+ times

Ulangan harian Persamaan lingkaran
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Persamaan lingkaran yang berpusat di O (0,0) dan berjari-jari 2 adalah ….

X2 + y2 – 2a = 0

X2 + y2 – 4a = 0

X2 + y2 + 2a = 0

X2 + y2 + 4a = 0

X2 + y2 +4a2 = 0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika AB merupakan diameter lingkaran dengan A(-5,2) dan B(5, -2), persaman lingkaran yang terbentuk berupa ….

X2+y2 =29

X2+y2 =25

X2+y2 =9

X2+y2 =4

X2+y2 =2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika titik P(-7,t) terletak pada lingkaran L X2+y2 =81, maka t1 .t2 = ….

49

8 2\sqrt{2}

- 4 2\sqrt{2}

-16

-32

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Persamaan lingkaran berpusat di O(0,0) menyinggung garis x -2 =0 adalah ….

X2+y2 =2

X2+y2 =4

X2+y2 =6

X2+y2 =9

X2+y2 =16

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Persamaan lingkaran yang berpusat di O(0,0) menyinggung garis y = -8 adalah ….

X2 +y2 – 8 =0

X2 + (y+4)(y-4) =0

X2 + (y+8)(y-8) =0

(x +4)(x – 4) +y2 = 0

(x +4)(x – 4) +(y+4)(y-4) =0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui A ( 5,-1) dan B(2,4) .Lingkaran yang berdiameter AB mempunyai persamaan ….

X2 + y2 – 3x – 3y + 3 = 0

X2 + y2 – 3x +7y + 6 = 0

X2 + y2 + 3x – 3y - 6 = 0

X2 + y2 – 7x – 3y + 6 = 0

X2 + y2 – 7x +3y + 6 = 0

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Agar titik P( - n,n) terletak di dalam lingkaran L X2+y2 =50, maka nilai n adalah ….

n < - 5 atau n > 5

n < - 5 atau n > 0

– 5 < n < 5

0 < n < 5

– 5 < n < 0

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