Pre-Calculus Homework Solutions 220

# Pre-Calculus Homework Solutions 220 - 35. The plot of land...

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35. The plot of land is an isosceles triangle. Let x represent the measure of one of the base angles. x 1 x 1 85 5 ¬ 180 2 x 1 85 5 ¬ 180 2 x 5 ¬ 95 x 5 ¬ 47.5 Let y represent the length of the base of the triangle. } sin 1 4 6 7 0 .5° } 5 ¬ } sin y 85° } y sin47.5° 5 ¬ 160sin85° y 5 ¬ } 1 s 6 i 0 n s 4 i 7 n . 8 5 5 ° ° } y < ¬ 216 The perimeter of the property is about 160 1 160 1 216 or 536 feet, so 536 feet of fencing material is needed. 36. m / K 1 m / J 1 m / P 5 ¬ 180 40 1 27 1 m / P 5 ¬ 180 67 1 m / P 5 ¬ 180 m / P 5 ¬ 113 } 1 si 4 n 3 P 3 } 5 ¬ } sin j J } } si 1 n 4 1 3 1 3 } 5 ¬ } sin j 27° } j sin113° 5 ¬ 1433sin27° j 5 ¬ } 14 s 3 in 3s 1 i 1 n 3 2 ° } j < ¬ 706.8 Kayla and Paige are about 706.8 meters apart. 37. See art for Exercise 36. } 1 si 4 n 3 P 3 } 5 ¬ } sin k K } } si 1 n 4 1 3 1 3 } 5 ¬ } sin k 40° } k sin113° 5 ¬ 1433sin40° k 5 ¬ } 14 s 3 in 3s 1 i 1 n 3 4 ° } k < ¬ 1000.7 Jenna and Paige are about 1000.7 meters apart.
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## This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.

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