Explanation:
formula of square= width x length
width = length
each sides = √ 64
= 8 cm
area of the rectangle = 1 & 1/2 x 64
= 96 cm²
formula for area of rectangle = " square
8 x length = 96 cm²
length= 96/8
= 12 cm
perimeter= 4 (8 + 12 + 12)
= 128 cm
*multiple with 4 cuz issa cross (??) i hope you get what i mean(??)
correct me if i'm wrong i'm learning too