Question 271906
The greenhouse floor has a diagonal equal to 28 feet.  the sides are sguare.  what is the length of one side?

Since it is a square floor the sides are equal.

Let each side be x

The diagonal and the two sides form a right triangle. The diagonal beomes the hyotenuse.

Using the Pythagorus theorem : (side)^2 +(side)^2 = Hypotenuse ^2

x^2+x^2 = 28^2
2x^2=784

x^2= 784/2

x^2= 392
x= sqrt 392 

x=19.79