Just because
base times height = area
A = lw Area of a rectangle = length times width
width times height
It is base times perpendicular height.
Area of a rectangle: a = l * w
L.A.= 2*pi*radius*height its not like finding the area of a rectangle. a cylinder is a 3-D shape and a rectangle is a flat shape
the area of a triangle is base times height times one half and rectangle is length times width
Area of rectangle is l x b. Where l is length and b is breath of the rectangle.
Multiply the base by the height !
Squares are rectangles so the formula for area will stay the same.
Length x Width LxW
Formula = length times width