How do I mulitply two lines togather???

Recommended Posts

I am almost done squaring a circle, but I need to know how to multiply two lines togather. Does anyone know how to???

Share on other sites

eh? Multiplying two vectors together? Or what?

What's "squaring a circle"?

Share on other sites

Squaring a circle is when you have a circle with a certain area, and with nothing but a straight-edge and compass, one tries to calculate the dimensions of a square with the same area as the circle.

I have a line that is pi units in length, and I need to multiply it by a line 6 units in length in a construction, but I don't know where I can find the construction online!!! Aghh!!!

Share on other sites

Never mind, I found out how to multiply two lines togather.

Share on other sites

Ah, I see what you mean by multiplication now.

Share on other sites

Is it squaring a circle or squaring a triangle that's impossible?

One of those.

Share on other sites

You thinking of trisecting an angle?

Share on other sites

What is "trisecting an angle"?

Share on other sites

Dividing it into three equal angles. This is the popular one that can't be done with just a compass and straight edge.

Share on other sites

Yeah, I can't trisect an angle!!! But, I have other ways around it...

Is it squaring a circle or squaring a triangle that's impossible?
In theory its impossible, but I got bored, so we're all going to find out, won't we?

Share on other sites
In theory its impossible, but I got bored, so we're all going to find out, won't we?

Well, it's been proven to be impossible, so unless you want to waste a lot of time...

Share on other sites
Well, it's been proven to be impossible, so unless you want to waste a lot of time...
That's all I have! I would like to see the proof proving squaring a circle is impossible, does anyone have a link?

Share on other sites

Lemme see where to begin.... take the circumferance of the circle. $C=D\pi$ This is very important, but I will show you why later.

And the area of the circle would be $A=r^2\pi$, that too is the area of the square, correct?

Therefore, the side of the square MUST be $r\sqrt{\pi}$, correct?

Well, remember the Circumferance? Well, Squareroot it. $\sqrt{D\pi}$, and squareroot the diameter on its own too. Now, plug it in $\sqrt{D\pi/D}=\sqrt{\pi}$ Multiply by the radius, which we began with! Is this not correct???

Share on other sites

I'm not sure what you're trying to state there...

We began with C = Dπ...

So what?

Share on other sites
Is this not correct???

No, because the 'answer' is transcendental.

Share on other sites

yeah, squaring a circle is proven to be impossible. and trisecting angles is possible for some specific angles. but its impossible for a general angle.

Create an account

Register a new account

×
×
• Create New...