Pre-Calculus Homework Solutions 254

# Pre-Calculus Homework Solutions 254 - 45 B 51 Use the...

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45. B; By plotting choices A, C, and D on the graph, it is obvious that they cannot be the fourth vertex. Choice B is the only possibility. ( 2 2, 2) and (8, 2) have the same y -component. These are the endpoints of a horizontal segment 10 units long. (11, 2 6) and (1, 2 6) have the same y -component. These are also the endpoints of a horizontal segment 10 units long. These two sides of the quadrilateral are congruent and parallel, so the quadrilateral is a parallelogram. 46. C; use the Distance Formula to find the distance between X and Y . XY 5 ¬ Ï ( x 2 2 w x 1 ) 2 1 w ( y 2 2 w y 1 ) 2 w 5 ¬ Ï ( 2 3 2 w 5) 2 1 w ( 2 4 2 w 7) 2 w 5 ¬ Ï 185 w Page 423 Maintain Your Skills 47. The diagonals of a parallelogram bisect each other, so ML 5 LQ . Find w . ML 5 ¬ LQ w 5 ¬ 12 48. Opposite sides of a parallelogram are congruent, so their measures are equal. Find x . NQ 5 ¬ MR 3 x 1 2 5 ¬ 4 x 2 2 4 5 ¬ x 49. Opposite sides of a parallelogram are congruent, so their measures are equal. Find
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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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