This resource has been contributed by Winpossible, and can also be accessed on their website by clicking here - Area of a Parallelogram
In this mini- lesson, you'll learn the formulas used for calculating area of a parallelogram. It will be shared with the help of some examples and practice questions with solution, and watching video as well as explanations by the instructor.
The area, A, of a parallelogram is A = BH, where B is the base of the parallelogram and H is its height. The height of a parallelogram is a segment drawn perpendicular to the base from an opposite vertex. In another way the area of a parallelogram is twice the area of a triangle created by one of its diagonals.
For example, if base of a parallelogram is 20 cm and height is 10 cm, then area is given by 20 × 10 = 200 cm2
If base of a parallelogram and its area is known, then height is given by:
height = Area/Base.
E.g. if the area of a parallelogram is 100 cm2
and base is 5 cm, then height is 100/5 = 20 cm.
Similarly, when height of a parallelogram and its area are known, then base can be calculated by:
E.g. if the area of a parallelogram is 50 cm2
and height is 10 cm, then base is 50/10 = 5 cm.
This FREE mini-lesson is a part of Winpossible's online course that covers all topics within Geometry. Click on the video below to go through it. If you like it, you can buy our online course in Geometry by clicking here.