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03 Dec 2018, 03:36
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
77% (02:05) correct
23%
(02:23)
wrong
based on 71
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What is the area of the quadrilateral ABCD?
A. 19
B. 31
C. 32
D. 38
E. 76
Attachment:
figure 8.jpg [ 18.61 KiB | Viewed 2135 times ]
Chethan92
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03 Dec 2018, 03:50
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extend the point D till (11,1) call it as X.
And Extend B till (11,7) call it as Y.
Now we have a rectangle of area 10*6 = 60.
Now area of the triangle XDC = 1/2*6*4 = 12.
Now area of the triangle YBC = 1/2*10*2 = 10.
Now area of quadrilateral = 60-12-10 = 38.
D is the answer.
Attached an image for reference.
And Extend B till (11,7) call it as Y.
Now we have a rectangle of area 10*6 = 60.
Now area of the triangle XDC = 1/2*6*4 = 12.
Now area of the triangle YBC = 1/2*10*2 = 10.
Now area of quadrilateral = 60-12-10 = 38.
D is the answer.
Attached an image for reference.
Attachments
PS.jpg [ 21 KiB | Viewed 1996 times ]
03 Dec 2018, 04:20
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Bunuel
What is the area of the quadrilateral ABCD?
A. 19
B. 31
C. 32
D. 38
E. 76
Attachment:
figure 8.jpg
I solved using approximation.
its a trapezoid
two lengths of bases are 4 & sqrt104 ~10
and height 6
so area : 0.5*6*(4+10)
~42 closest option is D IMO 38...
