Math asap.
given: ∠1 ≅ ∠3

which lines must be parallel?
a) r and s
b) p and q
c) p and r
d) q and s

given that de, df, and fe are the lengths of mid-segments, what is the perimeter of the triangle abc?
a) 23
b) 32
c) 46
d) 69

1. B
∠1 and ∠3 are corresponding angles where a transversal (line r) cuts two parallel lines (p and q).

2. C
Each of the segments of ABC is twice the length of the corresponding segment of EDF. Hence the perimeter of ABC is twice that of EDF.