Answer:
A
Step-by-step explanation:
Not sure its A but use this http://www.mathpapa.com/algebra-calculator.html
Square root acts like a variable, so since there are 12 edges you want to distribute one length of an edge by 12. in the end youll get 144 + 120 square root 6
Answer:
8.9m
Step-by-step explanation:
area of square is side length squared so
=8.944