Answer:
The type of ∠3 and ∠11 are corresponding angles
The transversal is line B
lines C and D are parallel
Explanation:
From the given figure
∵ Lines C and D are intersected by line B
∴ Line B is the transversal of lines C and D
∵ ∠3 and ∠11 In the same side of line B
∵ ∠3 is above line C and ∠11 is above line D
∴ ∠3 and ∠11 are in the corresponding position
∴ ∠3 and ∠11 are corresponding angles
∴ The type of ∠3 and ∠11 are corresponding angles
∴ The transversal is line B
∵ ∠3 ≅ ∠11
∵ ∠3 and ∠11 in the corresponding position
∵ ∠3 and ∠11 between lines C and D
∴ lines C and D are parallel.