Question

WHAT IS THE LENGTH OF SIDE S OF THE SQUARE SHOWN BELOW PIC IN COMMENTS

Answer 1

sin 45 = x /2
according to 45 45 90, the sides should be rad (2)
and sin 45 = rad 2 /2

Answer 2

so its d?

Answer 3

http://ct12345.weebly.com/uploads/9/6/0/9/9609821/805845_orig.gifv <--- 45-45-90 rule what do you think?

Answer 4

A