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In the figure above. quadrilateral ABCD is inscribed in a ci

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In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   26 May 2020, 10:57
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In the figure above, quadrilateral ABCD is inscribed in a circle and AC is the diameter of the circle.

Quantity A
Quantity B
The perimeter of ABCD
12



A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.



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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   26 May 2020, 10:59
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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   26 May 2020, 21:46
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In the figure, no angles are mentioned and the length of diameter is also not given. Thus, we cannot determine the perimeter of the quadrilateral.
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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   02 Dec 2020, 14:59
I thought it was a trick. We do know 2 angles, ABC and ADC are both 90.
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In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   09 Jun 2021, 21:24
I dont know why the answer is D, but if we draw a line from B to CENTER O, then one equilateral and one isosceles triangle is formed. Similar drawing can be done in lower part too. I am getting more than 12 in quantity A. rx10 GreenlightTestPrep rx10 KarunMendiratta sir, can you please confirm?
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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   09 Jun 2021, 22:36
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The radius is not given.
How can you make an equilateral triangle? isosceles I can understand with both side as radius but equilateral how?

We are not given any measure of angles as well as length hence we can't conclude anything. So D


kumarneupane4344 wrote:
I dont know why the answer is D, but if we draw a line from B to CENTER O, then one equilateral and one isosceles triangle is formed. Similar drawing can be done in lower part too. I am getting more than 12 in quantity A. rx10 GreenlightTestPrep rx10 @karunmendiretta sir, can you please confirm?
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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   09 Jun 2021, 22:42
rx10 wrote:
The radius is not given.
How can you make an equilateral triangle? isosceles I can understand with both side as radius but equilateral how?

We are not given any measure of angles as well as length hence we can't conclude anything. So D


kumarneupane4344 wrote:
I dont know why the answer is D, but if we draw a line from B to CENTER O, then one equilateral and one isosceles triangle is formed. Similar drawing can be done in lower part too. I am getting more than 12 in quantity A. rx10 GreenlightTestPrep rx10 @karunmendiretta sir, can you please confirm?



Ohh I see. My bad. Now I understood sir.
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Re: In the figure above. quadrilateral ABCD is inscribed in a ci [#permalink] New post   11 Dec 2022, 18:35
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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