OXYZW is a pyramid with a square base such that OX = OY= OZ = OW = 5cm and XY = XW = YZ = WZ = 6cm. Find the height OT

A.
2(sqrt{5}) 
B.
3 
C.
4 
D.
4(sqrt{3})
Correct Answer: Option D
Explanation
xz^{2} = 6^{2} + 6^{2}
36 + 36 = 72
xz = (sqrt{72})
6(sqrt{2}) = xT
(frac{6sqrt{2}}{2}) = (frac{3}{sqrt{2}})
OT^{2} = 5^{2} + (3(sqrt{2}))2 = 25 + 18
OT = 4(sqrt{3})