Here are a few options for the WordPress post_tag description, catering to different needs and levels of detail:

**Option 1: Concise & Focused**

* **Description:** 涵蓋幾何學公式，包括面積、體積、角度等。 (Encompasses geometric formulas, including area, volume, angles, etc.)

**Option 2: Slightly More Descriptive**

* **Description:** 此標籤收錄與幾何公式相關的內容，方便學習與查找，包括平面幾何、立體幾何等。 (This tag contains content related to geometric formulas, for easy learning and searching, including plane geometry, solid geometry, etc.)

**Option 3: Keyword Rich (Helps with SEO)**

* **Description:** 彙整幾何公式，包含三角形面積、圓周長、長方體體積、圓錐體積等常用公式，適用於考試、學習和日常參考。 (Collects geometric formulas, including common formulas like triangle area, circle circumference, rectangular prism volume, cone volume, etc., suitable for exams, studying, and daily reference.)

**Option 4: Emphasizing the User Benefit**

* **Description:** 輕鬆查找幾何公式，一站式解決關於面積、體積和角度的計算問題。 讓你學習數學更有效率！ (Easy to find geometric formulas, solves calculation problems related to area, volume, and angles in one place. Makes your math learning more efficient!)

**Key Considerations:**

* **Target Audience:** Who are you writing for? Students, teachers, general readers? This will influence the tone and complexity.
* **Keywords:** Consider the keywords people might use to search for this information (e.g., “面積公式”, “體積公式”, “幾何學”, etc.) for SEO purposes.
* **Purpose:** What do you want the description to achieve? Briefly explain the topic, highlight the benefits of the content tagged with this term, and encourage users to check them out.

**How to use the description in WordPress:**

1. **Go to the “Tags” section in your WordPress Admin panel (usually under “Posts”).**
2. **Find the “幾何公式” tag.**
3. **Look for the “Description” field (it might say “Tag Description” or something similar).**
4. **Paste one of the descriptions above into the field.**
5. **Click “Save” or “Update”.**

Choose the description that best suits your needs and your overall content strategy! I hope this helps!