The areal velocity of the planets revolving around the sun is ………….. .

Explanation

To find the areal velocity of the planets revolving around the sun, we can follow these steps:

### Step 1: Understanding Areal Velocity
Areal velocity is defined as the area swept out by the radius vector of a planet in a given time. According to Kepler's Second Law, the areal velocity of a planet is constant.

### Step 2: Define the Area Swept Out
When a planet moves a small angle \( d\theta \) in a time interval \( dt \), the area \( dA \) swept out by the radius vector can be approximated as:
\[
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