MCQ
The supplement of five - sixth of a right angle is:
  • A
    $5^\circ $
  • $105^\circ $
  • C
    $95^\circ $
  • D
    $126^\circ $

Answer

Correct option: B.
$105^\circ $

 Five sixth of right angle $=\frac{5}{6}\times90^\circ=75^\circ$
Let the supplement be $x$
$\therefore x + 75^\circ = 180^\circ $
$\Rightarrow x = 180^\circ − 75^\circ $
$\Rightarrow x = 105^\circ $

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