Respuesta :

DeanR

[tex] \angle 1 = \angle 2 \qquad [/tex] vertical angles

[tex] \angle 3 = \angle 4 \qquad [/tex] vertical angles

[tex]\angle 1 = \angle 4 \qquad [/tex] given

[tex]\angle 2 = \angle 3 \qquad [/tex] transitivity

RELAXING NOICE
Relax