Kurt is cutting diagonal crossbars to stabilize a rectangular wooden frame. if the frame has dimensions of 3 feet by 5 feet, what is the length of one crossbar? give the exact answer using simplified radicals

In order for us to know the answer, we are going to apply pythagorean theorem here since the rectangle has been divided using a cross bar. The legs of the triangle would be 3 feet and 5 feet. Pythagorean theorem is a2 + b2 = c2.
3^2 + 5^2 = c2
9 + 25 = c2
34 = c2 (now square this one)
So c = 5.83. 
Therefore, the length of one crossbar is 5.83 feet. Hope this helps.

What is the inequality?