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16 May 2016, 02:38
Kudos
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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:
5%
(low)
Question Stats:
96% (00:58) correct
4%
(01:27)
wrong
based on 214
sessions
History
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Not Attempted Yet
ABCD is a parallelogram. BD = 2. All angles of triangle BCD are equal. What is the perimeter of the parallelogram?
A. 12
B. 9√3
C. 9
D. 8
E. 3√3
Attachment:
p005-2.gif [ 691 Bytes | Viewed 11052 times ]
16 May 2016, 03:50
Kudos
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ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all equal.
Triangle BCD is equilateral, so its side should also be equal
BD = BC= CD =2
Since ABCD is a parallelogram, opposite sides and angles should also be equal
Thus we have all sides of parallelogram ABCD = 2
Perimeter = 2 x 4 = 8
(Yes , this is a rhombus)
Correct option : D
Triangle BCD is equilateral, so its side should also be equal
BD = BC= CD =2
Since ABCD is a parallelogram, opposite sides and angles should also be equal
Thus we have all sides of parallelogram ABCD = 2
Perimeter = 2 x 4 = 8
(Yes , this is a rhombus)
Correct option : D
16 May 2016, 11:19
Kudos
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Bunuel
Quote:
So, BC = BD = CD = BA = AD = 2
The parallelogram has 4 equal sides
BC = CD = BA = AD = 2
So The perimeter of the parallelogram will be 2*4 =8
Hence answer will be (D) 2
