Find the value of j°.

Solution:

The angles 71°, 48°, and j° are angles around a point on a straight line. Their sum is 180°.

\( 71° + 48° + j° = 180° \)

\( 119° + j° = 180° \)

\( j° = 180° - 119° \)

\( j° = 61° \)

Answer: 61