Question

If angle1=angle3 ,angle2=angle4 and angle 3=angle4,write the relation between angle1 and angle2,using an euclid's axiom

Answer 1

Euclids first axiom. Things equal to the same things are equal to one another. If a=b, c=d then a=d. Similarly here Angle 1=Angle 3 and Angle 2=Angle 4 and Angle 3= Angle 4 hence Angle1=Angle 2. Cheers mate. :)