PQRS is a square whose side is 16 cm. What is the value of the side (in cm) of the largest regular octagon that can be cut from the given square?
A
8 \u2013 4\u221a2
B
16 + 8\u221a2
C
16\u221a2 \u2013 \u221a16
D
16 \u2013 8\u221a2
Correct Answer: 16\u221a2 \u2013 \u221a16