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# In the figure above, equilateral triangle ABC is inscribed in the

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Manager
Joined: 20 Jan 2014
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Location: India
Concentration: Technology, Marketing
Re: In the figure above, equilateral triangle ABC is inscribed in the [#permalink]

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21 Dec 2014, 22:24
Thanks Karishma and Bunnuel ,

I was doing it wrong - This shows difference between theoretical knowledge and practical application.
Lesson learnt hard way
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Re: In the figure above, equilateral triangle ABC is inscribed in the [#permalink]

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08 Jun 2017, 16:41
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Attached is a visual that should help.
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Screen Shot 2017-06-08 at 4.31.56 PM.png [ 225.94 KiB | Viewed 771 times ]

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Re: In the figure above, equilateral triangle ABC is inscribed in the [#permalink]

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26 Dec 2017, 08:38
Can someone help me out here?

everything makes sense up to C=36.

Since the circumference is 36 and Circumference=D*pi or 2*r*pi.

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Re: In the figure above, equilateral triangle ABC is inscribed in the [#permalink]

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26 Dec 2017, 08:48
teamryan15 wrote:
Can someone help me out here?

everything makes sense up to C=36.

Since the circumference is 36 and Circumference=D*pi or 2*r*pi.

$$c=\frac{24*3}{2}=36=\pi{d}$$;

$$d=\frac{36}{\pi}\approx{\frac{36}{3.14}}\approx{11.5}$$.
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Re: In the figure above, equilateral triangle ABC is inscribed in the   [#permalink] 26 Dec 2017, 08:48

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