1.

Plz answer 2nd question i will definitely mark as brainliest

Answer»

In TRIANGLE RBT
Line AS ||lineBT
So ANGLE 2 =angle5 AA test 1
Angle 3 = angle 2 given 2
Angle 5= angle 4 given 3
Angle 1 =angle 4 CA test 4
From 1 2 3 4
Angle 3=angle 5 = angle 4
So by equilateral triangle test
Angle 1= 60*



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