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24 Jun 2022, 18:30
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Difficulty:
45%
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Question Stats:
63% (01:25) correct
38%
(01:45)
wrong
based on 24
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△BAC = △ACD, and the length of AC is 4. What is the area of the quadrilateral ABCD above?
(1) \(AB = 2\) and \(BC= 2\sqrt{3}\)
(2) \(x= 60°\)
Attachment:
1.jpg [ 6.91 KiB | Viewed 1089 times ]
24 Jun 2022, 18:37
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Notable triangles at the GMAT:
3,4,5
5,12,13
30,60,90 = x,x\sqrt{3},2x
45,45,90 = x,x,x\sqrt{2}
3,4,5
5,12,13
30,60,90 = x,x\sqrt{3},2x
45,45,90 = x,x,x\sqrt{2}
Attachments
FE250579-063C-465A-97C4-891AC2B3D1B2.jpeg [ 266.33 KiB | Viewed 847 times ]
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