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# In the figure, the area of rectangle ABCD is 45. What is the area of

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Math Expert
Joined: 02 Sep 2009
Posts: 53066
In the figure, the area of rectangle ABCD is 45. What is the area of  [#permalink]

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09 Oct 2018, 22:39
00:00

Difficulty:

25% (medium)

Question Stats:

88% (01:09) correct 13% (00:27) wrong based on 13 sessions

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In the figure, the area of rectangle ABCD is 45. What is the area of the square EFGH ?

(A) 20
(B) 40
(C) 50
(D) 65
(E) 70

Attachment:

rectangler.jpg [ 17.7 KiB | Viewed 223 times ]

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Re: In the figure, the area of rectangle ABCD is 45. What is the area of  [#permalink]

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09 Oct 2018, 22:48
(x+5)(x-5) =45
X^2 -25 =45
X^2 =70
Which is area of square EFGH
OPTION :E

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Re: In the figure, the area of rectangle ABCD is 45. What is the area of   [#permalink] 09 Oct 2018, 22:48
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