area & Perimeter of Square & Rectangular

Square:

area: A=S*S

PERIMETER:  P=S+S+S+S   OR       P=S*4

Rectangle:

area:   A=L*W

perimeter: p=2{L+W}  OR  P= 2L+2W

S=SIDE
A=AREA
P=PERIMETER
L= LENGTH
W= WIDTH