Nine square tiles are laid out on a table so that they make a solid pattern. each tile must touch at least one other tile along an entire edge. the squares all have sides of length 1.
(a) what are the possible perimeters of the figures that can be formed? (the perimeter is the distance around the figure.)
(b) which figure has the least perimeter?

can someone me with this?

answer: b

step-by-step explanation:

i dont know what you want me to answer for this but im guessing 2: 11?

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.