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If A is the center of the circle above, what is the area of the triang

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If A is the center of the circle above, what is the area of the triang  [#permalink]

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New post 07 Sep 2018, 01:32
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

73% (00:35) correct 27% (00:23) wrong based on 26 sessions

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If A is the center of the circle above, what is the area of the triangle shown in the figure?

(1) The triangle is an equilateral triangle.
(2) The radius of the circle is 1.


Attachment:
image006 (1).jpg
image006 (1).jpg [ 3.57 KiB | Viewed 235 times ]

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Re: If A is the center of the circle above, what is the area of the triang  [#permalink]

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New post 07 Sep 2018, 03:08
Bunuel wrote:
Image
If A is the center of the circle above, what is the area of the triangle shown in the figure?

(1) The triangle is an equilateral triangle.
(2) The radius of the circle is 1.


Attachment:
image006 (1).jpg


So since 1 angle is given as 60 degrees, the other sides are equal and so all three angles become 60

A. Not sufficient
B. Sufficient
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Re: If A is the center of the circle above, what is the area of the triang  [#permalink]

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New post 07 Sep 2018, 06:53
Given triangle is an equilateral triangle because one of the angles is 60 degree. Two arms of the triangle are equal because they are radius and hence angles opposite to them are equal.
To find the area we need just the radius of the triangle.
1. Radius is not given. Therefore the answer is B,C or E.
2. The radius is given. So the statement is sufficient.

The answer is B.
Re: If A is the center of the circle above, what is the area of the triang &nbs [#permalink] 07 Sep 2018, 06:53
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