23/6 as a mixed fraction is 3(5/6)
Answer:
10
or 14.14 appromiximately
Step-by-step explanation:
Area of square = 100
So length on side = 10 because all sides of square equal.
Length of Diagonal = Side x 
So the length of diagonal is 14.14 approximately
To your question, "K<-5", that is the answer. So the answer is K<-5