Pre-Calculus Homework Solutions 174

# Pre-Calculus Homework Solutions 174 - 18 Let x represent EG...

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11. Let x represent the perimeter of n ADF .The perimeter of n BCE 5 24 1 12 1 18 or 54. } D CE F } 5 ¬ } 2 1 1 8 } 5 ¬ } 5 x 4 } 1134 5 ¬ 18 x 63 5 ¬ x The perimeter of n ADF is 63 units. 12. Let x represent the perimeter of n CBH .The perimeter of n FEH 5 11 1 6 1 10 or 27. ADEG is a parallelogram, so A w D w ± G w E w and / BCH > / HFE . so C w H w corresponds to F w H w . } C FH H } 5 ¬ } 1 7 0 } 5 ¬ } 2 x 7 } 189 5 ¬ 10 x 18.9 5 ¬ x The perimeter of n CBH is 18.9 units. 13. Let x represent the perimeter of n DEF . } D FC F } 5 ¬ } 6 8 } 5 ¬ } 2 x 7 } 162 5 ¬ 8 x 20.25 5 ¬ x The perimeter of n DEF is 20.25 units. 14. Let x represent the perimeter of n ABC .The perimeter of n CBD 5 3 1 4 1 5 or 12. } D CB B } 5 ¬ } 5 3 } 5 ¬ } 1 x 2 } 60 5 ¬ 3 x 20 5 ¬ x The perimeter of n ABC is 20 units. 15. Let x represent the perimeter of n ABC . n CBD is a right triangle, so use the Pythagorean Theorem to find BD . ( CD
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