geometry · worked example

Solve 底邊 10、高 6 的三角形 — A = 30

Method: 三角形面積公式. Verified step-by-step solution with our free AI math solver.
Problem

A=12bh, b=10, h=6A = \tfrac{1}{2} b h,\ b=10,\ h=6

Step-by-step solution

  1. 套用公式:A=12baseheightA = \tfrac{1}{2} \cdot \text{base} \cdot \text{height}

  2. 代入 b=10b = 10h=6h = 6A=12106A = \tfrac{1}{2} \cdot 10 \cdot 6

  3. 化簡:A=30A = 30

  4. 注意:高必須與所選底邊 垂直 — 而不是斜邊的長度。

Answer

A=30A = 30

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