A rectangle is a specific type of quadrilateral with four right angles (90 degrees). It has opposite sides that are equal in length.
Square: A square is a special type of rectangle where all four sides are equal in length.
Perimeter: The perimeter of a rectangle is the total distance around its outer edges, calculated by adding up the lengths of all four sides.
Area: The area of a rectangle is the amount of space it occupies and can be calculated by multiplying the length and width of the rectangle.