Advertisements
Advertisements
प्रश्न
In the following figure, POQ is a line. If x = 30°, then ∠QOR is ______.
विकल्प
90°
30°
150°
60°
MCQ
रिक्त स्थान भरें
Advertisements
उत्तर
In the following figure, POQ is a line. If x = 30°, then ∠QOR is 90°.
Explanation:
It is given that, POQ is a line.
Since, the sum of all the angles on a straight line is 180°.
Therefore, x + 2y + 3y = 180°
⇒ x + 5y = 180° ...[∵ x = 30°, given]
⇒ 30° + 5y = 180°
⇒ 5y = 180° – 30°
⇒ 5y = 150°
⇒ y = `150^circ/5`
⇒ y = 30°
∴ ∠QOR = 3y = 3 × 30° = 90°
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
