Answer: True
Explanation:
- When two lines intersect each other at the vertex (known as point of intersection), four angles are formed .
- The angles that are opposite from each other are known as a pair of vertical angles and they are always equal.
- So, left and right angles must be equal (i.e. ∠3=∠4) and top and bottom angles are equal (i.e. ∠1=∠2) .
Hence, the given statement is correct .
so, the answer is "True".