Question 203993
x is the length of the hypotenuse of the isosceles right triangle that is cut from each corner of the 54" square


by Pythagoras, the length of a side of the triangle is [x / sqrt(2)]


the 54" length consists of one side of the octagon (x) plus two sides of the cut-out corner triangles (2[x / sqrt(2)])


x + 2[x / sqrt(2)] = 54 ___ x + x[sqrt(2)] = 54 ___ x = 54 / [1 + sqrt(2)]


x = 22.37 (approx) ___ or 22 3/8


good luck with the table