Answer:
a. 8m
b. 7cm
Step-by-step explanation:
a. Area of a square is s², where s is the side length.
To find s:
s² = 64
s = √64
s = ±8
length cannot be negative, hence it is positive 8
b. Perimeter of a square is 4s = P, where P is the perimeter and s is the side length.
4s = 28
s = 7
