Aptitude Reasoning English GK Computer Knowledge Programming Skill Banking Software Testing

Question

Geometry:

Measure of each interior angle of a regular polygon can never be ____

  • 105 degrees
  • 108 degrees
  • 144 degrees
  • 150 degrees
  • None of these
Answer- A

Each interior angle = ((2n-4)/n) x 90˚ = 105˚

(2n-4) x 6 = 7n

=> 12n – 24 = 7n => 5n =24 => n = 24/5 Which is impossible.