Samantha is studying the geometric design of roads. she uses a surveying tool to measure the angles at the intersections of the roads near to her school, which are shown in the picture below (not to scale). samantha noted that smith street is parallel to abbey road.
which of the following statements are true about the picture? select three that apply.
a
the value of x is 8.

b
the value of x is 21.

c
the measure of angle a is 42°.

d
the measure of angle b is 42°.

e
angles a and b are same side interior angles.