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In a rectangular coordinate system, what is the area of a rectangle

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In a rectangular coordinate system, what is the area of a rectangle  [#permalink]

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New post 30 Jun 2016, 07:55
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A
B
C
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E

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91% (00:53) correct 9% (01:23) wrong based on 54 sessions

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In a rectangular coordinate system, what is the area of a rectangle whose vertices have the coordinates (-4, 1), (1, 1), (1, -3) and (-4, -3)?

A. 16
B. 20
C. 24
D. 25
E. 30

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Re: In a rectangular coordinate system, what is the area of a rectangle  [#permalink]

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New post 30 Jun 2016, 08:24
Answer is B: 20

Refer to the diagram, the rectangle is of length 4 and width 5 . So Area = 4*5 = 20
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Re: In a rectangular coordinate system, what is the area of a rectangle  [#permalink]

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New post 30 Jun 2016, 09:08
Bunuel wrote:
In a rectangular coordinate system, what is the area of a rectangle whose vertices have the coordinates (-4, 1), (1, 1), (1, -3) and (-4, -3)?

A. 16
B. 20
C. 24
D. 25
E. 30


Length of side 1= 4+1=5
Length of side 2= 3+1= 4

Area of rectangle= 5*4= 20

B is the answer
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Re: In a rectangular coordinate system, what is the area of a rectangle &nbs [#permalink] 30 Jun 2016, 09:08
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