Question

which lines are parallel? check all that apply
b
c
d
e
f
a
89.5°
88.5°
91.5°
89.5°
90.5°
b||f
b||d
c||e

Explanation:

Step1: Identify corresponding angles

Corresponding - angles for parallel lines are equal.

Step2: Check angle pairs

$b$ and $d$ have equal corresponding angles ($89.5^{\circ}$).

Answer:

b||d