Base x perpendicular height
The area of a parallelogram is "BASE X HEIGHT"
base x length
The area of a rectangle
Perimeter: (2*L)+(2*W) [length times two plus width times two] Area: L*W [length times width]
to find the area of a parallelogram you must find the right angle of the shape then you multiply it with the base number and then you get your answer
A parallelagram can be a square, which has four lines of symmetry or a rectangle which has two lines of symmetry but the generic parallelagram has zero lines of symmetry