Pre-Calculus Homework Solutions 236

# Pre-Calculus Homework Solutions 236 - Chapter 8...

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Chapter 8 238 Chapter 8 Quadrilaterals Page 403 Getting Started 1. The angles measuring x ° and 50° are supplementary. Find x . m / x 1 50 5 180 m / x 5 130 So, x is 130. 2. x °is the measure of the exterior angle of the triangle so its measure is the sum of the two remote interior angles or 25 1 20. So, x 5 45. 3. The measure of an internal angle of an equilateral triangle is 60. The angle measuring x ° is supplementary to one of the angles. Find x. m / x 1 60 5 180 m / x 5 120 So, x is 120. 4. The slope is given by m 5 } y x 2 2 2 2 y x 1 1 } . R w S w : } 2 10 1 2 2 3 4 } 5 ¬ 2 } 7 5 } T w S w : } 2 10 1 2 2 2 1 0 3 } 5 ¬ } 2 2 1 1 0 4 } 5 ¬ } 5 7 } R w S w and T w S w are perpendicular since their slopes are opposite inverses. 5. The slope is given by m 5 } y x 2 2 2 2 y x 1 1 } . R w S w : } 3 8 2 2 ( 2 6 9) } 5 } 1 2 2 } 5 } 1 6 } T w S w : } 8 3 2 2 2 1 0 } 5 } 2 2 12 } 52 6 R w S w and T w S w are perpendicular since their slopes are opposite inverses. 6.
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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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