## Trigonometry (11th Edition) Clone

-18$^{\circ}$30'54"
1. -18$^{\circ}$ +-0.515(60)'=-18$^{\circ}$30.9' Ignore negative sign. Follow the same method by multiplying decimal part of degree by 60 to find in minutes 2. -18$^{\circ}$30' +- 0.9(60)"= -18$^{\circ}$30'54" By multiplying decimal part of minutes by (60) we find the seconds.