平行四边形面积计算器公式

## Parallelogram Area

### Formula

**Area = base × height**

**Perimeter = 2 × (base + side)**

The height is the perpendicular distance between the two parallel bases, not the slant side length.

计算示例

Parallelogram with base 8, height 5, and side 6.

  1. Area = 8 × 5 = 40
  2. Perimeter = 2 × (8 + 6) = 28