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# In the triangle above, lengths AC and BD are both equal to the same in

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Math Expert
Joined: 02 Sep 2009
Posts: 43334

Kudos [?]: 139617 [1], given: 12794

In the triangle above, lengths AC and BD are both equal to the same in [#permalink]

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24 Aug 2017, 22:35
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Difficulty:

35% (medium)

Question Stats:

64% (01:49) correct 36% (01:28) wrong based on 21 sessions

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In the triangle above, lengths AC and BD are both equal to the same integer. Which of the following could NOT be the area of ∆ ABC?

(A) 1/2
(B) 4 1/2
(C) 6
(D) 8
(E) 12 1/2

[Reveal] Spoiler:
Attachment:

2017-08-24_1251_002.png [ 4.37 KiB | Viewed 340 times ]
[Reveal] Spoiler: OA

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Kudos [?]: 139617 [1], given: 12794

BSchool Forum Moderator
Joined: 26 Feb 2016
Posts: 1811

Kudos [?]: 830 [1], given: 22

Location: India
WE: Sales (Retail)
Re: In the triangle above, lengths AC and BD are both equal to the same in [#permalink]

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24 Aug 2017, 22:43
1
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If the integer the base and height are equal to is x,
the area for the triangle is $$\frac{1}{2}*x^2 = \frac{x^2}{2}$$

Of the answer options available (after converting the mixed fractions to proper fraction)
(A) $$\frac{1}{2}$$
(B) $$4\frac{1}{2}$$ = $$\frac{9}{2}$$
(C) $$6 = \frac{12}{2}$$
(D) $$8 = \frac{16}{2}$$
(E) $$12\frac{1}{2} = \frac{25}{2}$$

The numerator is not a square only in Option C and is our correct answer!
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Kudos [?]: 830 [1], given: 22

Director
Joined: 18 Aug 2016
Posts: 627

Kudos [?]: 208 [0], given: 167

Concentration: Strategy, Technology
GMAT 1: 630 Q47 V29
GMAT 2: 740 Q51 V38
Re: In the triangle above, lengths AC and BD are both equal to the same in [#permalink]

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24 Aug 2017, 23:03
Bunuel wrote:

In the triangle above, lengths AC and BD are both equal to the same integer. Which of the following could NOT be the area of ∆ ABC?

(A) 1/2
(B) 4 1/2
(C) 6
(D) 8
(E) 12 1/2

[Reveal] Spoiler:
Attachment:
2017-08-24_1251_002.png

1/2 is 1/2 * 1^2
9/2 is 1/2 * 3^2
12/2 is 1/2 * not an integer
16/2 is 1/2 * 4^2
25/2 is 1/2 * 5^2
C
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Kudos [?]: 208 [0], given: 167

Re: In the triangle above, lengths AC and BD are both equal to the same in   [#permalink] 24 Aug 2017, 23:03
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# In the triangle above, lengths AC and BD are both equal to the same in

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