Circuit theroy: find current in ix and iy

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

What’s #16 asking me and how do i solve it?

Convection occurs when thermal energy is transferred by the movement of