SSC CPO SI and ASI Model Paper 5

(3) The two angles are x and 2x.The third angle will be (180 – 3x).
Now, 3x = (180 – 3x)
⇒ 6x = 180
⇒x =30
So, the angles are 30°, 60°and 90°.
∴Triangle is right angled triangle.