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If the three angles of a triangle are:
 then the triangle is:   (SSC CGL 1st Sit. 2015)
  • a)
    scalene
  • b)
    isosceles
  • c)
    right angled
  • d)
    equilateral
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
If the three angles of a triangle are:then the triangle is: (SSC CGL 1...
Angles are = (x + 15°),

We know that
Sum of the angles of a triangle is 180°.

⇒ 43x = 129 x 15
x = 45°

= 60°, 60°, 60°
So this is an equilateral triangle.
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Most Upvoted Answer
If the three angles of a triangle are:then the triangle is: (SSC CGL 1...
Angles are = (x + 15°),

We know that
Sum of the angles of a triangle is 180°.

⇒ 43x = 129 x 15
x = 45°

= 60°, 60°, 60°
So this is an equilateral triangle.
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If the three angles of a triangle are:then the triangle is: (SSC CGL 1st Sit. 2015)a)scaleneb)isoscelesc)right angledd)equilateralCorrect answer is option 'D'. Can you explain this answer?
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