Area of a square is length multiplied by height.
36=l×h
In a square length is the same as hiehgt.
36=l×l
What multiplied by itself equals 36? 6. So the current length of the sides is 6ft.
Each side is increased by 4ft, so 6+4=10, the new lengths are 10ft.
Perimeter is all the sides added together, the square has four sides each 10ft long so 10+10+10+10=40
The new perimeter is 40ft
