Pre-Calculus Homework Solutions 200

Pre-Calculus Homework Solutions 200 - 24. d c 60 30 6 e (...

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24. The diagonals determine equilateral triangles with sides equal to half the length of each diagonal, or 6 inches. So e 1 f 5 6, and e 5 f 5 3. Then a 5 Ï 3 w ( e ) or 3 Ï 3 w ,so c 5 d 5 3 Ï 3 w . Then the perimeter of the rectangle is 2(6) 1 2(3 Ï 3 w 1 3 Ï 3 w ) or 12 1 12 Ï 3 w < 32.78 inches. 25. Each side has measure ! } 25 4 6 } § or 8. The length of a diagonal is Ï 2 w times as long as a side of the square. So the measure of a diagonal is 8 Ï 2 w < 11.31. 26. 8 5 2 x 4 5 x y 5 Ï 3 w ( x ) y 5 Ï 3 w (4) or 4 Ï 3 w z 5 6 Each leg of the 45°-45°-90° triangle has length x , or 4. Then CB 5 4 Ï 2 w .So, the perimeter of ABCD is 4 Ï 3 w 1 6 1 4 1 4 Ï 2 w 1 6 1 8 5 4 Ï 3 w 1 4 Ï 2 w 1 24, or about 36.59 units. 27. Graph A and B . A w B w lies on a horizontal gridline of the coordinate plane. Since P w B w will be perpendicular to A w B w ,it lies on a vertical gridline. AB
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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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