Prove that The length of tangent from an external point on a circle is always greater than the radius of the circle.

Explanation

To prove that the length of the tangent from an external point to a circle is always greater than the radius of the circle, we can follow these steps:

### Step-by-Step Solution:

1. **Draw the Circle and Identify Points**:
- Draw a circle with center \( O \) and radius \( r \).
- Let \( P \) be an external point outside the circle.

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