Parallelogram is composed of two pairs of parallel sides. Arms in front of each other are of equal length and angles opposite to each other are of similar value in a Parallelogram. Various types of parallelogram are rhomboid parallelogram, rectangle parallelogram, rhombus parallelogram and Square parallelogram. In short, we can say that parallelogram is a four sided figure which consists of two pairs of parallel sides. Sums of angles of parallelogram is  2π radians.
Following figure shows parallelogram’s basic structure.

Area of a parallelogram is similar to that of degree of vector cross product of two adjacent sides. Mathematically, area of a parallelogram can be given by multiplication of base and height of the parallelogram. This can be expressed as:
Area = h × b (unit) 2. Here unit may be foot or cm or inch and so on.
Perimeter of parallelogram can be measured in a two dimensional figure. Perimeter is also called as circumference.
Perimeter = 2 (h × b) units.
If two sides of parallelogram are given to us then it is very easy to calculate the Area And Perimeter of parallelogram using standard formula.
Let’s try to find the perimeter of a parallelogram if the measure of the two adjacent sides are 15 in and 23 in, then to calculate perimeter following formulas are used.
Area = 15 inch * 23 inch = 345 inch2 and Perimeter of Parallelogram will be given as
Perimeter = 2 (area of parallelogram) = 2 * 345 inch2 = 690 inch2.