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If ABCD is a trapezoid, where AB is parallel to CD...

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alexander.gundry
 Post subject: If ABCD is a trapezoid, where AB is parallel to CD...
 Post Posted: Tue Aug 09, 2011 9:27 am 
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Course Students


Posts: 2
Hi. I am having trouble with the problem below. I do not understand why you can't divide both sides by 2 to get the height of AB and CD (the two bases). I thought that the answer to this DS question was C because statement 1 gives you the bases of the trapezoid (Ab + CD = 6) and statement 2 gives you the height of the trapezoid. But, because you can't divide by 2 in statement 1, it only provides you with Ab = CD - AB. (I can't post the picture but it is just a standard trapezoid. The question is called "Trap-ez") Thanks!

If ABCD is a trapezoid, where AB is parallel to CD, what is the area of ABCD?

(1) 2(AB) + CD = 12

(2) The height of the trapezoid is 5 inches
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mithunsam
 Post subject: Re: If ABCD is a trapezoid, where AB is parallel to CD...
 Post Posted: Tue Aug 09, 2011 2:23 pm 
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Course Students


Posts: 76
Duplicate question... Please refer
http://www.manhattangmat.com/forums/if-abcd-is-a-trapezoid-where-ab-is-parallel-to-cd-t13541.html
alexander.gundry wrote:
Hi. I am having trouble with the problem below. I do not understand why you can't divide both sides by 2 to get the height of AB and CD (the two bases). I thought that the answer to this DS question was C because statement 1 gives you the bases of the trapezoid (Ab + CD = 6) and statement 2 gives you the height of the trapezoid. But, because you can't divide by 2 in statement 1, it only provides you with Ab = CD - AB. (I can't post the picture but it is just a standard trapezoid. The question is called "Trap-ez") Thanks!

If ABCD is a trapezoid, where AB is parallel to CD, what is the area of ABCD?

(1) 2(AB) + CD = 12

(2) The height of the trapezoid is 5 inches
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jnelson0612
 Post subject: Re: If ABCD is a trapezoid, where AB is parallel to CD...
 Post Posted: Sun Sep 11, 2011 11:56 pm 
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ManhattanGMAT Staff


Posts: 1857
Thanks!

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Jamie Nelson
ManhattanGMAT Instructor
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