cutting squares out of circles - WarmGlass.com

cutting squares out of circles

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jim simmons
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cutting squares out of circles

Postby jim simmons » Sun Aug 11, 2013 7:06 pm

I know that there is a formula in the archives, but I can't find it.

A formula to determine the maximum square out of a circle.

Ie 12" diameter circle will get a ?? square
Jim

Morganica
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Re: cutting squares out of circles

Postby Morganica » Sun Aug 11, 2013 7:38 pm

A 12 inch diameter means the square can only be 12 inches from one corner to its opposite (the diagonal). Coincidentally, that would be the hypotenuse of a right triangle--what you want to find is the length of one of the legs of that triangle. If you dredge up your old geometry books, you'll find a-squared + b-squared = c-squared, where c-squared is the hypotenuse of a right triangle. Both legs should be the same length, so...

a^2 + b^2 =12^2
a^2 + b^2 =144
a^2=72

a= sqrt of 72

so a=8.5 or thereabouts

I'm doing this in my head, so somebody please check my math...and there may be an easier way to find this, that's just the only one that occurred to me.
Cynthia Morgan
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Tony Smith
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Re: cutting squares out of circles

Postby Tony Smith » Sun Aug 11, 2013 7:44 pm

Your math checks.

Tony
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GlassCat
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Re: cutting squares out of circles

Postby GlassCat » Sun Aug 11, 2013 11:09 pm

OK, I have a headache--LOL

Carol

Rick Wilton
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Re: cutting squares out of circles

Postby Rick Wilton » Tue Aug 13, 2013 7:12 pm

Yep, I draw it on the computer.
Easier than the math.
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JestersBaubles
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Re: cutting squares out of circles

Postby JestersBaubles » Tue Aug 13, 2013 9:38 pm

Rick Wilton wrote:Yep, I draw it on the computer.
Easier than the math.


Where's the "like" button? :mrgreen:

(Cynthia's response made me slightly ill. I had horrible math teachers...)

Dana W.

DonMcClennen
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Re: cutting squares out of circles

Postby DonMcClennen » Fri Aug 16, 2013 2:27 pm

If you don't use your Math, you lose your Math.......Hooray for Cynthia =D> Math"RULES"
"The Glassman"

JestersBaubles
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Re: cutting squares out of circles

Postby JestersBaubles » Fri Aug 16, 2013 10:10 pm

DonMcClennen wrote:If you don't use your Math, you lose your Math.......Hooray for Cynthia =D> Math"RULES"


I've never had it to lose :mrgreen: .

I think if someone would have taught me with *practical* examples, it might have stuck. They did; it didn't. I don't care what time the train leaving Chicago meets the one leaving Las Vegas if one is carry purple unicorns and the other is empty.

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jim simmons
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Re: cutting squares out of circles

Postby jim simmons » Wed Aug 21, 2013 9:28 pm

If'n you say so, Boss :>)
Jim



Rick Wilton wrote:Yep, I draw it on the computer.
Easier than the math.

Franzeska
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Re: cutting squares out of circles

Postby Franzeska » Sat Oct 26, 2013 8:29 pm

Since I am posting so long after the conversation, I imagine no one will read this.
1) Yea Morgana! You never cease to impress and amaze me.
2) I can't imagine what someone would want to cut a square out of a circle. What was that about???

jim simmons
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Re: cutting squares out of circles

Postby jim simmons » Sat Oct 26, 2013 10:31 pm

I had some circles cut and didn't have any sheet glass, and needed a square

Jim


Franzeska wrote:Since I am posting so long after the conversation, I imagine no one will read this.
1) Yea Morgana! You never cease to impress and amaze me.
2) I can't imagine what someone would want to cut a square out of a circle. What was that about???

Valerie Adams
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Re: cutting squares out of circles

Postby Valerie Adams » Sun Oct 27, 2013 12:54 pm

jim simmons wrote:I had some circles cut and didn't have any sheet glass, and needed a square

Jim

Jim, if I was only a half-hour away from Bullseye, I'd never run out of sheet glass! :D

Richard Blummer
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Re: cutting squares out of circles

Postby Richard Blummer » Wed Oct 30, 2013 1:13 pm

Franzeska wrote:Since I am posting so long after the conversation, I imagine no one will read this.
1) Yea Morgana! You never cease to impress and amaze me.
2) I can't imagine what someone would want to cut a square out of a circle. What was that about???


This comes in very handy when you're shopping for a "round" kiln or shelf, and want to know the maximun size of a square piece that you can fit in it or on it.
אָשֵׁר חַיִּים

Mike Jordan
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Re: cutting squares out of circles

Postby Mike Jordan » Wed Oct 30, 2013 6:35 pm

Valerie Adams wrote:
jim simmons wrote:I had some circles cut and didn't have any sheet glass, and needed a square

Jim

Jim, if I was only a half-hour away from Bullseye, I'd never run out of sheet glass! :D


Valerie, if you knew how backed up Hwy 26 going East from Hillsboro through the tunnel into Portland can be at times, you might forgo running over to Bullseye for a sheet of glass and try to make do with what you had as well. ;)

Mike
It's said that inside each of us is an artist trying to get out. Well mine got out... and I haven't seen him since.

jim simmons
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Re: cutting squares out of circles

Postby jim simmons » Wed Oct 30, 2013 7:40 pm

Normally, without traffic on Hwy 26, I can get all the way into Bullseye in 20 min.
That said, I have had it take me 45 min to get to pdx, and another 20 min to get to BE. :>)
Jim


Mike Jordan wrote:
Valerie Adams wrote:
jim simmons wrote:I had some circles cut and didn't have any sheet glass, and needed a square

Jim

Jim, if I was only a half-hour away from Bullseye, I'd never run out of sheet glass! :D


Valerie, if you knew how backed up Hwy 26 going East from Hillsboro through the tunnel into Portland can be at times, you might forgo running over to Bullseye for a sheet of glass and try to make do with what you had as well. ;)

Mike


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