Problem of the Week

Trapezoid - January 29, 2007

In trapezoid ABCD, base AB has a length of 52 units, base CD has a length of 39 units, side AD has a length of 5 units, and side BC has a length of 12 units.  Find the area of the trapezoid.

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Correct answers have been submitted by:

1. Bernell Mcgehee. Liberty, MS USA
2. Scarlet Brown. Blackmon Road Middle School, Columbus, GA USA
3. Rylleigh Olvera. Blackmon Road Middle School, Columbus, GA USA
4. Monique Coley. Blackmon Road Middle School, Columbus, GA USA
5. Blake And Gray Muncy And Bittinger. Blackmon Road Middle School, Columbus, GA USA
6. Andrew Mcdonald. Blackmon Road Middle School, Columbus, GA USA
7. Daniel Sencal. Collge Jean-eudes, Montral, MO Canada
8. Eugene Roytman. New York, NY USA
9. Chung Soo. Lake Forest, CA USA
10. Dejan Mancic. Toronto, Canada
11. Jeff Graetz. Miami Valley School, Dayton, OH USA
12. Stefan Gatachiu. Medgidia, Romania
13. Joshua Decell. Making Waves Education Program, San Francisco, CA USA
14. Hubert Tong. Queens University, Scarborough, On, Canada
15. Gregory Ciesluk. Duluth, MN USA
16. Syko Yugi. Tokyo, Japan
17. Kelly Dunnivan. Blackmon Road Middle School, Columbus, GA USA
18. Madison Mapel. Blackmon Road Middle School, Columbus, GA USA
19. E C. Sleepy Hollow, NY USA
20. Matt Newlon. P. High School, Davisville, WV USA
21. Stephen Chi Kong Ng. Singapore International School, Hong Kong, Hong Kong
22. Sam Wright. Chelmsford High School, Chelmsford, MA USA
23. Bilyana Tzolova. Mount Nittany Middle School, State College, PA USA
24. Joe Smith. Terry Parker High School, Jacksonville, FL USA
25. Lucas T. Jaf Senior High School, Miami, FL USA
26. Dan Seltzer. Waterford, CT USA
27. Fuyun Zhang. Detroit Country Day School, Novi, MI USA
28. Jude Gonsalves. Langham Creek High School, Houston, TX USA
29. Suvitha Radhakrishnan. Blackmon Road Middle School, Columbus, GA USA
30. David Mize. Davenport, IA USA
31. Alexis Moore. Blackmon Road Middle School, Columbus, GA USA
32. Becky Smith. Blackmon Road Middle School, Columbus, GA USA
33. Deeti Pithadia. Blackmon Road Middle School, Columbus, GA USA
34. Justin Roberts. Richardson, TX USA
35. Stephen Brown. Pike County High School, Zebulon, GA USA
36. Preda Victor. Braila, Romania
37. Stanislav Pandelov. Tu-mnchen, Kazanlak, Bulgaria
38. Charles Peng. Hong Kong International School, Hong Kong, Hong Kong
39. Dinesh Nayak. , Mangalore, India
40. Alicia De Len-sotelo Y Vidosa. Colegio Marista Colon, Huelva, Spain
41. Miltiadis Allamanis. Thessaloniki, Greece
42. Saylar Craig. Sas Dhahran School, Dhahran, Saudi Arabia
43. Frank Mc Gartland. Saskatoon, Canada
44. Don Miller. Oregon City, OR USA
45. Nebojsa Varnica. Pozega, Serbia and Montenegro
46. Farid Lian. Atlantic University, Barranquilla, Colombia
47. Martin Ong. Hong Kong International School, Hong Kong, Hong Kong
48. Wenlin Fan. Moorestown, NJ USA
49. Michael Gayheart. Highland, CA USA
50. Kenneth Lin. International School Of Beijing, Beijing, China
51. Frans Janssen. Nijmegen, Netherlands
52. Lucas Smith. Hong Kong International School, Hong Kong, Hong Kong
53. Omar Magdy Essafty. Secondary School, Alexandria, Egypt
54. Magdy Essafty. Alexandria, Egypt
55. Nicholas Lo. Hong Kong International School, Hong Kong, Hong Kong
56. Mrinal Singh. Kendriya Vidyalaya, Shillong, India
57. Bob Waltrip. E. S. R. I., Redlands, CA USA
58. Waqaas Munawar. Rawalpindi, Pakistan
59. Kunal Singh. Kendriya Vidyalaya, Shillong, India
60. David Stigant. Houston, TX USA
61. Tom Lindsay. Warren, RI USA
62. Jonathan Liu. Phillips Academy Andover, Andover, MA USA
63. Travis R. Rutland Town School, Rutland, VT USA
64. Tom Wilcox. H. C. Wilcox Technical High School, Meriden, CT USA
65. Robert Williams. Mcc, Sarasota, FL USA
66. Casian Ionescu. Montreal, Canada
67. Ruoyi Chen. Columbus, GA USA
68. Anthony Pabillano. Flour Bluff High School, Corpus Christi, TX USA
69. Lipika Narisetti. Prep Academy, Columbus, OH USA
70. Phillip Ai. Hammarskjold Middle School, East Brunswick, NJ USA
71. Brian Hetrick. Manchester, NH USA
72. Suvitha Radhakrishnan. Blackmon Road Middle School, Columbus, GA USA
73. David Lu. P. School 139q, Rego Park, NY USA
74. Jerome Cherry. Mundare, Canada
75. Hash Jujj. Dunlap, IL USA
76. Bing Han. Stanton College Preparatory School, Jacksonville, FL USA
77. Brian Smith. Thomas Stone School, Waldorf, MD USA
78. Bernell Mc Gehee. Liberty, MS USA
79. Richard Levine. Clearwater, FL USA
80. Theja Kurniawan. Jakarta, Indonesia
81. Tjauw Hwi Siong. Jakarta, Indonesia
82. Zoe Fong. Hong Kong International School, Hong Kong, Hong Kong
83. Angie Lee. International School Of Beijing, Beijing, China
84. Rick Pastoria. Stow, OH USA
85. Jansen Teo. Singapore, Singapore
86. Nick Pell. Brookstone School, Columbus, GA USA
87. George Xu. Jls Middle School, Palo Alto, CA USA
88. Tori Kennedy. Brookstone School, Columbus, GA USA
89. Holly Thompson. Clayton, MO USA
90. Jeffrey Schwartz. Boiling Springs High School, Boiling Springs, PA USA
91. Vu Tran. Sachse, TX USA
92. Ed Lemire. The Derryfield School, Manchester, NH USA
93. L.f. Lee. Taipei, Taiwan
94. Derek Oconnor. Terman Middle School, Palo Alto, CA USA
95. Jack Tseng. San Marino High School, San Marino, CA USA
96. Sean Morency. Chelmsford High School, Chelmsford, MA USA
97. Sean Morency. Chelmsford High School, Chelmsford, MA USA
98. Vishwas Chandra. White Station School, Cordova, TN USA
99. Kevin Sharitz. Marquette High School, Chesterfield, MO USA
100. Rakesh Passa. Wakefield School, Arlington, VA USA
101. Enoch Chan. Hong Kong International School, Hong Kong, Hong Kong
102. Janson Ng. Singapore International School, Hong Kong, Hong Kong
103. Michael Chiang. Hong Kong International School, Hong Kong, Hong Kong
104. Tori Kennedy. Brookstone School, Columbus, GA USA
105. Chris Cain. Northside High School, Midland, GA USA
106. Esther Chan. Hong Kong International School, Hong Kong, Hong Kong
107. David Williams. Kingston, TN USA
108. Cory Colby. Omaha, NE USA
109. Daniel Bernucci. McGill University, Montreal, Canada
110. Dalia Kassem. Wakefield High School, Arlington, VA USA
111. Luca Puglisi. Mesa Union School, Oxnard, CA USA
112. Glen Brandt. Red Deer, Canada
113. Iftach Groswirth. Sderot, Israel
114. Christine Moulton. Cs Middle School, Austin, TX USA
115. Stefanie Young. School, Hong Kong, Hong Kong
116. Drew Clegg. Blackmon Road Middle School, Columbus, GA USA
117. Dan Zhang. International School of Beijing, Beijing, China
118. Eric Sung. Kinkaid School, Houston, TX USA
119. Max Groner. Bexley High School, Bexley, OH USA
120. Kishan Subhash. Shimoga, India
121. Amy Chyao. Murphy Middle School, Richardson, TX USA
122. Azmi Azahari. Dhahran Middle School, Dhahran, Saudi Arabia
123. Mark Xia. Troy High School, Fullerton, CA USA
124. Hunter Ciuba. Brookstone School, Columbus, GA USA
125. Claire Lin. Issaquah Middle School, Issaquah, WA USA
126. Dhruv Taneja. Liberty Elementary School, Columbus, OH USA