幾何学

面積計算機

円・長方形・三角形などの面積を計算

使い方
  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.

計算式

Area formulas:

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