The lower window of a house is at a height of 2m above the ground and its upper window is 4m vertically above the tower window. At certain instant the angles of elevation of a balloon from these windows are observed to be `60^(@)` and `30^(@)`, respectively. Find the height of the balloon above the ground.

Explanation

To find the height of the balloon above the ground, we can follow these steps:

### Step 1: Understand the problem and set up the diagram
- The lower window of the house is at a height of 2 meters above the ground.
- The upper window is 4 meters above the lower window, making it 6 meters above the ground.
- The angles of elevation from the lower window to the balloon is \(60^\circ\) and from the upper window is \(30^\circ\).

### Step 2: Define the variables
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