Parallelogram Calculator
Find parallelogram area from base and height, plus perimeter when a side length is given.
Parallelogram Calculator
Find parallelogram area from base and height, plus perimeter when a side length is given.
How to use the Parallelogram Calculator
- Enter the base.
- Enter the height.
- Optionally enter the side length for perimeter.
- Click Calculate.
Formula
Area = base × height
Perimeter = 2(base + side)
Example
Base 10, height 7, side 8: Area = 70. Perimeter = 36.
Step-by-step calculation
- Area: 10 × 7 = 70.
- Perimeter: 2 × (10 + 8) = 36.
- Area is 70 square units, perimeter is 36 units.
Real-world uses
- Land surveying for angled plots.
- Fabric and material cutting.
- Structural beam calculations.
Common mistakes
- Using the side length instead of the perpendicular height for area.
- Assuming all sides are equal (they are not in a general parallelogram).
- Confusing the height with the slanted side.
Frequently asked questions
What is the difference between a parallelogram and a rectangle?
A rectangle is a parallelogram with all right angles. A general parallelogram may be slanted.
How do I find the height?
The height is the perpendicular distance between the base and the opposite side, not the slanted side.
Can a rhombus be a parallelogram?
Yes. A rhombus is a parallelogram with all four sides equal.