Confused parent

Question

A square lawn needs to be reseeded. The lawn has an area of 152m2. What are the dimensions of the lawn to 2 decimal places? A fence is built around the lawn . How long is the fence?

Answer 1

A = area = 152 m²

 

L = length of square = √A = √152 m = 12.33 m

 

P = length of perimeter (i.e. fence) = 4L = 4*12.33 m = 49.32 m