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Chan790

(20,176 posts)

3. 208cm?

Reply to pokerfan (Original post)

Thu Dec 5, 2013, 01:03 AM

Dec 2013

That's 1/3 of the circumference truncated down to the nearest centimeter minus 1cm. That should insure there is at-least one baffle between the two openings at all times.

dπ=circumference

200(22/7)=628.3185307179586476925286766559<<so I don't have to retype that, this will be assigned variable (q)

q/3=209.43951023931954923084289221863

Edit: Yes, it is that hard. Please realize now why America is not producing more STEM majors and needs to instead figure out how to monetize humanities degrees and continue to import engineers.

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Is this math/geometry problem really that difficult? (OECD) [View all] pokerfan Dec 2013 OP

I estimate 1/6 of the circumference of the circle cyberswede Dec 2013 #1

Yeah, that's what popped in my mind just by looking at the first drawing pokerfan Dec 2013 #13

157 cm BlueJazz Dec 2013 #2

208cm? Chan790 Dec 2013 #3

I also had 209 Blue_Tires Dec 2013 #24

42 Glassunion Dec 2013 #4

Here you are with the correct answer antiquie Dec 2013 #19

I didn't even use a calculator. Took me less than 2 seconds. Glassunion Dec 2013 #21

Circumference of the entire doorway is 2*pi*r or 6.28*100 or 628 cm. Systematic Chaos Dec 2013 #5

Eyeballing from the drawing, I was thinking... Wounded Bear Dec 2013 #9

I think you're too high by 50%. Callmecrazy Dec 2013 #17

It would be uncomfortable at best to try and squeeze through a doorway only 52 cm wide... Systematic Chaos Dec 2013 #18

I rechecked my math... Callmecrazy Dec 2013 #20

Answer: live in coastal California, and never have to worry about this stuff petronius Dec 2013 #6

That might take a couple of minutes of thought if the diagram didn't make the answer struggle4progress Dec 2013 #7

99 cm. jmowreader Dec 2013 #8

I once watched a young carpenter build a spiral staircase without measuring anything. Scuba Dec 2013 #10

My brother in law could do stuff like that. cliffordu Dec 2013 #15

not enough information surrealAmerican Dec 2013 #11

209cm is my guess, but I am not very smart and math stuffs. nt Demo_Chris Dec 2013 #12

Depends on what you mean by "difficult". Dr. Strange Dec 2013 #14

Well, the angle has to be < pi/3 radians ... eppur_se_muova Dec 2013 #16

104.72 cm arc each door XRubicon Dec 2013 #22

Pi*D/6 One_Life_To_Give Dec 2013 #23