The sides of a quadrilateral `ABCD` are `6 cm`, `8 cm`, `12cm` and `14cm` (taken in order), respectively and the angle between the first two sides is a right angle. Find its area.

Explanation

To find the area of quadrilateral ABCD with sides 6 cm, 8 cm, 12 cm, and 14 cm, where the angle between the first two sides (AB and AD) is a right angle, we can divide the quadrilateral into two triangles: triangle ABD and triangle BCD.

### Step-by-Step Solution:

1. **Identify the Right Triangle ABD:**
Since angle A is a right angle, we can use the formula for the area of a right triangle. The area of triangle ABD can be calculated using the formula:
\[
\text{Area}_{ABD} = \frac{1}{2} \times \text{base} \times \text{height}
...