Question

finding angle 2 ,3 and angle 5 and 7​

Answer 1

Answer:

since angle 1=123°

then,angle 1=2 ( alternate angles)

→2=123°

→angle 2+3=180°(linear pair)

123°+angle 3=180°

angle 3=180-123

→3=57°

therefore,angle 2=angle 4(corresponding angle)

→angle 4=123°

similarly, angle4 +7=180( linear pair)

→7=57°

and angle 4=5 (alternate angle) 5=123°