In the Cartesian plane four points P, Q, R, S have co-ordinates (1, 1), (4, 2), (4, 4) and (1, 4). The area of the quadrilateral PQRS is

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Q: 143 (IAS/1995)
In the Cartesian plane four points P, Q, R, S have co-ordinates (1, 1), (4, 2), (4, 4) and (1, 4). The area of the quadrilateral PQRS is
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question_subject: 

Maths

question_exam: 

IAS

stats: 

0,3,5,1,3,2,2

keywords: 

{'quadrilateral pqrs': [0, 1, 0, 0], 'diagonals': [0, 1, 0, 0], 'cartesian plane': [0, 1, 0, 0], 'area': [0, 0, 0, 1], 'lengths': [0, 0, 1, 0]}