In figure, lines AB and CD intersect at O. If and , find and reflex .

**Solution:**

It is given that

** (Vertically Opposite angles)**

Therefore, **(1)**

It is also given that , putting **(1) **in this, we get

Reflex ** (2)**

We have ** (Linear pair) (3)**

** (Given) (4)**

Putting **(3)** and **(4)** in** (2), **we get

Reflex