Answer:
Sum of angles 2 and 3 will be equal to sum of angles 1 and 4.
As per the opposite angle theoreom: "When two lines cross, four angles are created and the opposite angles are equal" Here:
- Angle 1 is opposite of angle 3
- Angle 2 is opposite of angle 4
- Angle 2+3 is opposite of angle 1+4