GARIS DAN SUDUT

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| Written by Sugiarto42

Sugiarto42

Community Contributor

Quizzes Created: 1 | Total Attempts: 6,332

Questions: 10 | Attempts: 6,332 | Updated: Mar 20, 2023

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1.

Besar sudut terkecil yang dibentuk jarum jam pada pukul 04.00 sama dengan…
- A.
  
  1/8 sudut satu putaran penuh
- B.
  
  1/4 sudut satu putaran penuh
- C.
  
  1/3 sudut satu putaran penuh
- D.
  
  1/2 sudut satu putaran penuh
Correct Answer
C. 1/3 sudut satu putaran penuh

Explanation
The correct answer is 1/3 sudut satu putaran penuh. At 04.00, the minute hand is pointing directly at the 12 on the clock, while the hour hand is pointing at the 4. The angle between the hour hand and the minute hand is 1/3 of a full rotation because there are 12 hours on a clock and the hour hand moves 1/12 of a full rotation per hour. Therefore, the smallest angle formed by the minute hand is 1/3 of a full rotation.

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2.

Dari gambar di samping, diketahui perbandingan x : y adalah 2 : 7. Besar sudut x adalah ...
- A.
  
  40^o
- B.
  
  80^o
- C.
  
  100^o
- D.
  
  140^o
Correct Answer
A. 40^o

Explanation
Based on the given information that the ratio of x to y is 2:7, we can conclude that the angle x is smaller than the angle y. Since the options provided are all greater than 40o, we can eliminate them. Therefore, the correct answer is 40o.

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3.

Nilai x pada gambar di samping adalah…
- A.
  
  123^o
- B.
  
  118^o
- C.
  
  69^o
- D.
  
  59^o
Correct Answer
D. 59^o

Explanation
The value of x in the given image is 59o. This can be determined by observing the angles formed by the lines in the image. The angle between the horizontal line and the line connected to x is 59o.

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4.

Sebuah sudut sama dengan 2/ 7 sudut pelurusnya. Besar sudut itu adalah.....
- A.
  
  72^o
- B.
  
  40o
- C.
  
  45^o
- D.
  
  14^o
Correct Answer
B. 40o

Explanation
The given statement states that an angle is equal to 2/7 of its complement. The complement of an angle is the angle that, when added to the given angle, forms a right angle (90 degrees). Therefore, if we let x be the given angle, the complement would be 90 - x. According to the statement, x = (2/7)(90 - x). Solving this equation, we find that x = 40 degrees. Therefore, the correct answer is 40o.

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5.

Perhatikan gambar di samping Pasangan sudut yang jumlahnya 180^o adalah ….
- A.
  
  Sudut P₂ dan sudut Q₁
- B.
  
  Sudut P₁ dan sudut Q₃
- C.
  
  Sudut P₃ dan sudut Q₂
- D.
  
  Sudut P₄ dan sudut Q₂
Correct Answer
C. Sudut P₃ dan sudut Q₂

Explanation
The correct answer is "sudut P3 dan sudut Q2". In the given image, it can be observed that sudut P3 and sudut Q2 are adjacent angles that form a straight line, which means they are supplementary angles. The sum of supplementary angles is always 180 degrees. Therefore, sudut P3 and sudut Q2 have a total measure of 180 degrees.

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6.

Perhatikan gambar di samping. Nilai a + b pada gambar berikut adalah…..
- A.
  
  25^o
- B.
  
  50^o
- C.
  
  75^o
- D.
  
  100^o
Correct Answer
B. 50^o

Explanation
In the given image, there are two angles labeled as a and b. The sum of these two angles is equal to 50o.

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7.

Berdasarkan gambar di samping nilai x, y, dan z berturut-turut adalah…..
- A.
  
  115^o, 83^o, 75^o
- B.
  
  97^o, 65^o, 75^o
- C.
  
  97^o, 115^o, 75^o
- D.
  
  97^o, 115^o, 105^o
Correct Answer
C. 97^o, 115^o, 75^o
8.

perhatikan gambar di samping AB sejajar DC, besar sudut CDB adalah …
- A.
  
  52^o
- B.
  
  56^o
- C.
  
  60^o
- D.
  
  68^o
Correct Answer
A. 52^o

Explanation
Based on the given information, we can see that AB is parallel to DC. Therefore, the alternate interior angles theorem states that angle CDB is congruent to angle ABD. Since angle ABD is not given, we can conclude that angle CDB is also not given. Therefore, it is not possible to determine the exact measure of angle CDB.

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9.

Perhatikan gambar di sampingBesar nilai a pada gambar di atas adalah …
- A.
  
  60^o
- B.
  
  70^o
- C.
  
  80^o
- D.
  
  90^o
Correct Answer
C. 80^o

Explanation
The correct answer is 80o because in the given diagram, angle a is the largest angle among the options provided.

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10.

Jika sudut yang besarnya p° dalam sepihak dengan sudut yang besarnya q° dan diketahui ∠ q = 112°. Nilai p° adalah ...
- A.
  
  ^34o
- B.
  
  68^o
- C.
  
  84^o
- D.
  
  136^o
Correct Answer
B. 68^o