Find the measures of angles e, f, g, h, i, j, k, l.

1. Angles j and 107° are supplementary, so j = 180° - 107° = 73°. Angle i is vertically opposite to j, so i = 73°.
2. Angles l and 99° are supplementary, so l = 180° - 99° = 81°. Angle k is vertically opposite to l, so k = 81°.
3. Angle f and 83° are supplementary, so f = 180° - 83° = 97°. Angle e is vertically opposite to f, so e = 97°.
4. Angle h and 71° are supplementary, so h = 180° - 71° = 109°. Angle g is vertically opposite to h, so g = 109°.