几何

面积计算器

计算圆形、矩形、三角形等形状的面积

使用方法
  1. Select the shape you want to calculate the area for.
  2. Enter the required dimensions (e.g., radius, base, height).
  3. Click Calculate Area to get the result.

公式

Area formulas:

  • Square: Area = side²
  • Rectangle: Area = length × width
  • Triangle: Area = ½ × base × height
  • Circle: Area = π × radius²