免费三角形面积计算器
根据底和高计算三角形面积，简单直观。
面积
30.0000
Perimeter Note60.0000
公式
How to Calculate Triangle Area
Formula
A = ½ × base × height
Where:
This formula works for all triangles — the height must be perpendicular to the base.
计算示例
Find the area of a triangle with base 10 and height 6.
- 01A = ½ × 10 × 6
- 02= ½ × 60
- 03= 30
常见问题
How do you find the area of a triangle?
The simplest formula is A = ½ × base × height. The height must be perpendicular to the base.
What if I do not know the height?
If you know all three sides, use Heron's formula: A = √(s(s-a)(s-b)(s-c)), where s = (a+b+c)/2. If you know two sides and the included angle, use A = ½ × a × b × sin(C).
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