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# In the figure above, the triangle is equilateral, and the area of the

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Math Expert
Joined: 02 Sep 2009
Posts: 44298
In the figure above, the triangle is equilateral, and the area of the [#permalink]

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11 Nov 2017, 06:56
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In the figure above, the triangle is equilateral, and the area of the square region is 100. What is the perimeter of the triangle?

(A) 10
(B) 30
(C) 50
(D) 60
(E) 75

[Reveal] Spoiler:
Attachment:

2017-11-11_1745_001.png [ 2.88 KiB | Viewed 344 times ]
[Reveal] Spoiler: OA

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Joined: 22 May 2016
Posts: 1419
In the figure above, the triangle is equilateral, and the area of the [#permalink]

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11 Nov 2017, 08:05
Bunuel wrote:

In the figure above, the triangle is equilateral, and the area of the square region is 100. What is the perimeter of the triangle?

(A) 10
(B) 30
(C) 50
(D) 60
(E) 75

[Reveal] Spoiler:
Attachment:
2017-11-11_1745_001.png

Area of the square = 100
Area of square = $$s^2$$
$$s^2$$ = 100
$$s = 10$$

The square's top side = one side of equilateral triangle

The triangle's sides are equal.

Perimeter = (3)(10) = 30

Answer B
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Last edited by generis on 11 Nov 2017, 08:06, edited 1 time in total.
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Re: In the figure above, the triangle is equilateral, and the area of the [#permalink]

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11 Nov 2017, 08:06
Bunuel wrote:

In the figure above, the triangle is equilateral, and the area of the square region is 100. What is the perimeter of the triangle?

(A) 10
(B) 30
(C) 50
(D) 60
(E) 75

[Reveal] Spoiler:
Attachment:
2017-11-11_1745_001.png

Each side of the square = Each sides of the Triangle = 10

So, Perimeter of the Triangle is 3*10 = 30

Answer will be (B)
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Re: In the figure above, the triangle is equilateral, and the area of the   [#permalink] 11 Nov 2017, 08:06
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# In the figure above, the triangle is equilateral, and the area of the

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