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In the rectangular coordinate system above, the area in the shaded reg

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In the rectangular coordinate system above, the area in the shaded reg  [#permalink]

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New post 16 Dec 2017, 01:28
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

88% (00:57) correct 12% (00:54) wrong based on 77 sessions

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Re: In the rectangular coordinate system above, the area in the shaded reg  [#permalink]

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New post 16 Dec 2017, 11:36
Bunuel wrote:
Image
In the rectangular coordinate system above, the area in the shaded region is

(A) 1 1/2
(B) 2
(C) 2 1/2
(D) 3
(E) 4

Attachment:
2017-12-15_1301.png


Am I missing something?

Area of triangle: \(\frac{base*height}{2}\)

Area of shaded region: Area of large triangle - Area of small triangle

Area of small triangle: \(\frac{(1*1)}{2}=\frac{1}{2}\)

Area of large triangle: \(\frac{2*height}{2}=height\)

Area of shaded region: \(height\) \(- \frac{1}{2}\)
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Re: In the rectangular coordinate system above, the area in the shaded reg  [#permalink]

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New post 25 May 2019, 04:24
exc4libur wrote:
Bunuel wrote:
Image
In the rectangular coordinate system above, the area in the shaded region is

(A) 1 1/2
(B) 2
(C) 2 1/2
(D) 3
(E) 4

Attachment:
2017-12-15_1301.png


Am I missing something?

Area of triangle: \(\frac{base*height}{2}\)

Area of shaded region: Area of large triangle - Area of small triangle

Area of small triangle: \(\frac{(1*1)}{2}=\frac{1}{2}\)

Area of large triangle: \(\frac{2*height}{2}=height\)

Area of shaded region: \(height\) \(- \frac{1}{2}\)


So, Area of shared region = Area of larger triangle - Area of smaller triangle.

Dimensions of larger triangle are base = 2 units, height = 2 units
Dimensions of smaller triangle are base = 1 unit, height = 1 unit

Area of larger triangle = 1/2*base*height = 1/2*2*2 = 2 units
Area of smaller triangle = 1/2*1*1 = 1/2 units

So, Area of shaded region = 2 - 1/2 = 3/2 or 1 1/2

Option A

Hope its clear!
GMAT Club Bot
Re: In the rectangular coordinate system above, the area in the shaded reg   [#permalink] 25 May 2019, 04:24
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