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Which of the following rectangles, not necessarily drawn to scale, has

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Bunuel
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Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   16 Nov 2017, 01:43
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Which of the following rectangles, not necessarily drawn to scale, has an area equal to that of a circle of radius r?




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NandishSS
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   16 Nov 2017, 05:39
Bunuel wrote:
Which of the following rectangles, not necessarily drawn to scale, has an area equal to that of a circle of radius r?




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2017-11-16_1236_001.png


HI Bunuel,

Is it Area of rectangle = area of circle or

Area of rectangle = radius of circle?
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Bunuel
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   16 Nov 2017, 05:43
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NandishSS wrote:
Bunuel wrote:
Which of the following rectangles, not necessarily drawn to scale, has an area equal to that of a circle of radius r?




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Attachment:
2017-11-16_1236_001.png


HI Bunuel,

Is it Area of rectangle = area of circle or

Area of rectangle = radius of circle?


Which of the following rectangles has an area equal to that of (to the area of) a circle of radius r?
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   16 Nov 2017, 05:46
Area of rectangles =l*b

Area of circle = (pi) r^2

Hence A
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   16 Nov 2017, 09:39
Bunuel wrote:
Which of the following rectangles, not necessarily drawn to scale, has an area equal to that of a circle of radius r?




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Attachment:
2017-11-16_1236_001.png


Area of circle = \(πr^2\)

Among the given options, area of the rectangle is \(πr^2\), so answer will be (A)
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink] New post   17 Nov 2017, 14:30
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Bunuel wrote:
Which of the following rectangles, not necessarily drawn to scale, has an area equal to that of a circle of radius r?




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Attachment:
2017-11-16_1236_001.png


The area of a circle with radius r is πr^2. Let’s look at the area of the rectangle in each answer choice:

A) Area = πr x r = πr^2

Since answer A = πr^2, we have found the correct answer.

Answer: A
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Re: Which of the following rectangles, not necessarily drawn to scale, has [#permalink]
17 Nov 2017, 14:30
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