pythagoras

Your question does not make sense.

This is just an example. There are many solutions to this problem.

You have to substitute y, x, the square root, and the pi.

Now, substitue y and x and the problem would look like this:

$$\frac{yx2}{\sqrt\pi}=\frac{2*3*2}{\sqrt\pi}$$

Now, substitute the square root.

$$\frac{2*3*2}{\sqrt4\pi}$$

Now, solve the expression.

$$\frac{2*3*2}{\sqrt4\pi}\\\\=\frac{12}{\sqrt4\pi}\\\\=\frac{12}{2\pi}\\\\=18.8495559215387594$$

So, $$18.8495559215387594$$ is the answer.

But, you would want to round that.

So, when you round that, the answer is $$18.8$$.

Hope it helps!

Did you work out that LaTex code by yourself Dragon ??  I haven't seen you do anything like that before. 

Yes. I did it by myself. It was pretty easy. I have to write \pi so $$\pi$$ could appear.

And with the basic knowledge that I have learned, yes. It helped me a lot.

Well I am very impressed !!

I am going to give you 3 points just for your brilliant LaTex