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Question

If vertices of any quadrilateral are (0, -1), (2,1), (0, 3) and  (- 2,1), then it is a 



Your Answer
A

Parallelogram

Correct Answer
B

Square

Your Answer
C

Rectangle

Your Answer
D

Collinear


Solution

The correct option is A

Square


Let A(0, -1), B(2, 1), C(0, 3) and D(-2, 1).

Obviously AB = BC = CD = AD = 22

Also, AC = BD = 4 and slope of line AB = 1,

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