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In the figure below, the grid consists of unit squares. What is the ar
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08 Jun 2021, 08:57
08 Jun 2021, 08:57
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In the figure below, the grid consists of unit squares. What is the area of the polygon?
screenshot.77.png [ 6.43 KiB | Viewed 2102 times ]
(A) 7
(B) 9
(C) 10
(D) 12
(E) 15
Attachment:
screenshot.77.png [ 6.43 KiB | Viewed 2102 times ]
(A) 7
(B) 9
(C) 10
(D) 12
(E) 15
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: In the figure below, the grid consists of unit squares. What is the ar
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08 Jun 2021, 09:20
08 Jun 2021, 09:20
Carcass wrote:
In the figure below, the grid consists of unit squares. What is the area of the polygon?
(A) 7
(B) 9
(C) 10
(D) 12
(E) 15
Attachment:
screenshot.77.png
(A) 7
(B) 9
(C) 10
(D) 12
(E) 15
The great thing about the "fancy" quadrilaterals (squares, parallelograms, rectangles, rhombuses, AND trapezoids) is that they all have the same area formula.
Area = (base)(height)
In the case of a trapezoid, there are two bases (the two parallel sides are considered the bases).
So, what do we do?
We use the average of the two bases
This figure features a trapezoid.
The bottom base has length 5 and the top base has length 2
So, the average of the two bases = (5+2)/2 = 3.5
So, the area of the figure = (base)(height) = (3.5)(2)
= 7
Answer: A
gmatclubot
Re: In the figure below, the grid consists of unit squares. What is the ar [#permalink]
08 Jun 2021, 09:20
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