Question

In a pair of adjacent angles,

1. vertex is always common, 
2. one arm is always common, and 
3. uncommon arms are always opposite rays
   Then ______.

Options

• All (i), (ii) and (iii) are true

• (iii) is false

• (i) is false but (ii) and (iii) are true

• (ii) is false

Answer 1

(iii) is false

Explanation:

Two angles are called adjacent angles, if they have a common vertex and a common arm but no common interior points. It is not necessary that uncommon arms must always have opposite rays.