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In the figure above, all intersecting line segments are perp

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GRE Prep Club Team Member
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Joined: 20 Feb 2017
Posts: 141
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Kudos [?]: 43 [0], given: 60

In the figure above, all intersecting line segments are perp [#permalink] New post 23 Mar 2020, 23:31
00:00

Question Stats:

100% (00:33) correct 0% (00:00) wrong based on 3 sessions
Attachment:
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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
1 KUDOS received
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Joined: 17 Jun 2020
Posts: 33
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Kudos [?]: 26 [1] , given: 0

Re: In the figure above, all intersecting line segments are perp [#permalink] New post 01 Jul 2020, 22:40
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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
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Re: In the figure above, all intersecting line segments are perp   [#permalink] 01 Jul 2020, 22:40
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In the figure above, all intersecting line segments are perp

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