Question

Angle KLM and angle MLN are a linear pair.

Ray LR is to be added to the diagram so that it is
opposite ray LM. Which is true about angle RLN that
would be formed?
M
к
CL
N
Angles RLN and MLK would be vertical angles.
Angles RLN and MLN would be vertical angles,
Angles RLN and KLM would be a linear pair.
O Angles RLN and KLN would be a linear pair.

Answer 1

Angles RLN and MLK would be vertical angles.

Vertical angles are formed when their sides share the same lines. RL shares the same line with LM and NL shares the same line with LK (see the attached diagram), so that means both angles form a vertical pair.

Edge exam 2022

Answer 2

Angles RLN and KLM would be a linear pair.