(3.14*x^2)/4=185

Solution for (3.14*x^2)/4=185 equation:

(3.14x^2)/4=185

We move all terms to the left:

(3.14x^2)/4-(185)=0

We multiply all the terms by the denominator


(3.14x^2)-185*4=0

We add all the numbers together, and all the variables

(3.14x^2)-740=0

We get rid of parentheses

3.14x^2-740=0

a = 3.14; b = 0; c = -740;
Δ = b2-4ac
Δ = 02-4·3.14·(-740)
Δ = 9294.4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{9294.4}}{2*3.14}=\frac{0-\sqrt{9294.4}}{6.28}
=-\frac{\sqrt{}}{6.28}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{9294.4}}{2*3.14}=\frac{0+\sqrt{9294.4}}{6.28}
=\frac{\sqrt{}}{6.28}
$