## Trigonometry (10th Edition)

89$^{\circ}$54'1.44"
1. Start by converting decimal place of degree into minutes by multiplying by (60). 89$^{\circ}$+0.9004 (60')= 31$^{\circ}$54.024' 2. Then multiply the decimal part of minutes by (60) to convert to seconds 89$^{\circ}$54' +0.024(60)"=89$^{\circ}$54'1.44"