If a square has an area of 225cm how would you calculate the radius of the largest circle that could fit inside the square?

If there is a square field fit in a circle,then the middle point of the hypotenuse of the square is the the centre point of the circle. So,the half of hypotenuse is the radius of the circle. So

<code>Hypotenuse of square = &radic;{(5)&sup2;+(5)&sup2;} cm ==5&radic;2 cm
</code>

So, the radius of the circle = (5√2 )/2 =5/√2 cm.