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16 Apr 2018, 05:25
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C
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Difficulty:
15%
(low)
Question Stats:
89% (00:44) correct
11%
(02:29)
wrong
based on 44
sessions
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Date
Time
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What is the perimeter of quadrilateral ABCD above?
A. 160
B. 180
C. 200
D. 220
E. 240
Attachment:
Quadrilateral_A_B_C_D.png [ 3.46 KiB | Viewed 3292 times ]
16 Apr 2018, 05:39
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Bunuel
C. 200
1. Draw a perpendicular from point B on Line CD, to create right angled triangle BCE.
2. We know two sides of triangle ie BC=50 and BE=30. By pythagoras theorem of Pythagorean Triplet we get CE=40.
3. It gives the perimeter 30+40+50+40+40=200.
