C. 116°
Diketahui
- <AOC = (3x + 5)°
- <BOC = (2x - 10)°
Ditanya
Besar pelurs <BOC
Dijawab
(3x + 5)° + (2x - 10)° = 180° (berpelurus)
(3x + 2x) + (5 - 10)° = 180°
5x + (-5) = 180°
5x = 180 - (-5)
5x = 180 + 5
5x = 185°
x =
x = 37°
= 3x + 5
= 3(37) + 5
= 111 + 5
= 116°
= 2x - 10
= 2(37) - 10
= 74 - 10
= 64°
•°• Kesimpulan •°•
Pelurus <BOC yaitu <AOC, maka besar pelurus <BOC adalah (C).
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C. 116°
PEMBAHASAN
Diketahui
- <AOC = (3x + 5)°
- <BOC = (2x - 10)°
Ditanya
Besar pelurs <BOC
Dijawab
(3x + 5)° + (2x - 10)° = 180° (berpelurus)
(3x + 2x) + (5 - 10)° = 180°
5x + (-5) = 180°
5x = 180 - (-5)
5x = 180 + 5
5x = 185°
x =
x = 37°
= 3x + 5
= 3(37) + 5
= 111 + 5
= 116°
= 2x - 10
= 2(37) - 10
= 74 - 10
= 64°
•°• Kesimpulan •°•
Pelurus <BOC yaitu <AOC, maka besar pelurus <BOC adalah (C).