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How many sides on a circle?
vanity | Oct 19 2020 | Vanity

Posted on 10/19/2020 12:41:17 PM PDT by where's_the_Outrage?

My 1st grader's homework had a problem about the number of sides on a circle. I have a BS in Math and never thought about it, my initial thought was 1. Turns out there are multiple correct answers:

2 sides: Outside and inside

1 side: There is only one line

0 sides: A circle has no sides.

∞ (infinite) sides: Each point in a circle would be a separate side (yes, way too egghead for 1st grade)


TOPICS: Miscellaneous; Science
KEYWORDS: circle; farside; infinity; sides
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Just had to share this, some engineers and math geeks should get a kick out of it.
1 posted on 10/19/2020 12:41:17 PM PDT by where's_the_Outrage?
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To: where's_the_Outrage?

The correct answer is always Marxist revolution.


2 posted on 10/19/2020 12:42:50 PM PDT by ClearCase_guy (If White Privilege is real, why did Elizabeth Warren lie about being an Indian?)
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To: ClearCase_guy

You’re right. The issue isn’t how many sides on a circle, the issue is...

Now apologize to where’s_the_Outrage? for thread-jacking.


3 posted on 10/19/2020 12:44:22 PM PDT by ProtectOurFreedom ("Inside Every Progressive Is A Totalitarian Screaming To Get Out" -- David Horowitz)
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To: where's_the_Outrage?

I think we need to ask this guy:

https://en.wikipedia.org/wiki/Georg_Cantor

:-)


4 posted on 10/19/2020 12:45:08 PM PDT by cgbg (Biden n-2020: Criminal enterprise using cokehead as bagman.)
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To: where's_the_Outrage?

You first have to define what you mean by side.


5 posted on 10/19/2020 12:46:21 PM PDT by maro (MAGA!)
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To: where's_the_Outrage?

https://www.reference.com/world-view/many-sides-circle-a9188ad96242526d


6 posted on 10/19/2020 12:46:38 PM PDT by Jyotishi (Seeking the truth, a fact at a time.)
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To: where's_the_Outrage?

Starting awful early on that ‘2+2=5 depending on how you define all the factors’ crap.


7 posted on 10/19/2020 12:46:41 PM PDT by Spirit of Liberty (It's morning in America again!)
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To: cgbg
"Hmm...I'll have to think about that..."


8 posted on 10/19/2020 12:51:12 PM PDT by polymuser (A socialist is a communist without the power to take everything from their citizens...yet.)
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To: where's_the_Outrage?

I think infinite is correct, but for a first grader, none.

The other answer you suggest are fun but I think are more word game and not relevant to teaching math.


9 posted on 10/19/2020 12:51:55 PM PDT by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: where's_the_Outrage?

It seems equivalent to “How may faces does a sphere have?”


10 posted on 10/19/2020 12:52:47 PM PDT by polymuser (A socialist is a communist without the power to take everything from their citizens...yet.)
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To: where's_the_Outrage?

The reason behind this question is to teach/indoctrinate kids at a very early age that there is no right or wrong answers, that everything is relative. That is the basis of the leftist ideology.


11 posted on 10/19/2020 12:53:30 PM PDT by falcon99 (qu)
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To: falcon99

That’s deep


12 posted on 10/19/2020 12:54:27 PM PDT by Jonny7797
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To: where's_the_Outrage?

Only the left side (/SJW teacher answer).


13 posted on 10/19/2020 12:55:36 PM PDT by freedumb2003 ("Do not mistake activity for achievement." - John Wooden)
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To: cgbg

I think I had a class on Cantor. I remember having to prove equivalence between Whole, natural, Integers and rational numbers under the assumption infinity is infinity. However that did not expand to real, irrational and imaginary numbers.


14 posted on 10/19/2020 12:57:14 PM PDT by where's_the_Outrage? (Drain the Swamp. Build the Wall.)
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To: where's_the_Outrage?

ID, OD, top and bottom.


15 posted on 10/19/2020 12:59:20 PM PDT by Manic_Episode (Trump has more soul in his wink. Biden has souless dead fish eyes)
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To: where's_the_Outrage?

I did very well on these sorts of questions in grade school. One reason was, when the question was ambiguous, I tried to think like the teacher.

I don’t know this 1st grade teacher, but if I had to guess, I’d say s/he would be expecting the answer “1 side”. If it were a smart aleck 8th grade math teacher, I’d go for “2 sides”. If it were a pedantic, blockhead 11th grade teacher, I’d go for “no sides”.


16 posted on 10/19/2020 12:59:54 PM PDT by rightwingcrazy (;-,)
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To: maro

I had already emailed her teacher saying: “The correct answer would have to be based on the explicit definition of a side.”


17 posted on 10/19/2020 1:01:43 PM PDT by where's_the_Outrage? (Drain the Swamp. Build the Wall.)
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To: where's_the_Outrage?

Geometry is a racist construct.


18 posted on 10/19/2020 1:03:15 PM PDT by PGR88
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To: where's_the_Outrage?

How many sides does our moon have. I’ve seen only one, but I guess that’s relative to your position in relation to the moon. So, since there are an infinite number of positions one could view the moon from, there are an infinite number of sides to the moon.

Everyone is thinking of the circle and how it would appear if drawn on a sheet of paper. You need to think three dimentionally and view the circle from the “side” so that it would appear to you as a line of fixed length. Now rotate your viewing position around the center of the circle on the same plain as the circle and there you go. An infinite number of sides.


19 posted on 10/19/2020 1:04:33 PM PDT by loucon (Quarintine by choice is freedom. Quarintine by mandate is ... well you know ... that thing ...)
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To: rightwingcrazy

The full question (and there had been previous just like it) was Sides___ and Corners ______

The polygons all had the sides and corners being equal, so her correct answer is most likely zero.


20 posted on 10/19/2020 1:04:36 PM PDT by where's_the_Outrage? (Drain the Swamp. Build the Wall.)
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