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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
In the figure above, all intersecting line segments are perp
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23 Mar 2020, 23:31
23 Mar 2020, 23:31
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In the figure above, all intersecting line segments are perpendicular. What is the area of the shaded region, in square units?
(A) 84
(B) 118
(C) 128
(D) 139
(E) 238
Re: In the figure above, all intersecting line segments are perp
[#permalink]
01 Jul 2020, 22:40
01 Jul 2020, 22:40
1
This figure is a combination of rectangles, so there're lots of ways to solve it, the objetive is to find out the faster one.
The faster that i've thought in, is to divide the figure in 3 rectangles which sides are a combination of a 2 digit number easy to multiply and a 1 digit number.
As we can see, the first rectangle is 3 x 11, the second one 4 x 11 and the last one 3 x 17.
Thus we have 33+44+51 that is equal to 128.
Answer: C
The faster that i've thought in, is to divide the figure in 3 rectangles which sides are a combination of a 2 digit number easy to multiply and a 1 digit number.
As we can see, the first rectangle is 3 x 11, the second one 4 x 11 and the last one 3 x 17.
Thus we have 33+44+51 that is equal to 128.
Answer: C
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Triangle.png [ 30.87 KiB | Viewed 1484 times ]
gmatclubot
Re: In the figure above, all intersecting line segments are perp [#permalink]
01 Jul 2020, 22:40
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