Which pair of segments must be parallel?
A. AB and CD
B. AB and GH
C. CD and EF
D. EF and GH

B

Step-by-step explanation:

Parallel lines will never intersect, and so a line will never intersect another if the slopes are the same. What I can see, when you look for slope, AB is -1/4 and GH is -1/4. Reason being why it's not C is because CD is -5/6 while EF is -1.

ian gonna lie that is way to much

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°