To help you solve the problem, I’ll analyze the image and then provide a complete solution with step-by-step work.

Let's examine the content in the image.

---

Problem:

The problem in the image asks to calculate the area of a triangle given that three circles are inscribed in it. The circles are stacked vertically, and the diameter of each circle is known. It also involves understanding the relationship between the circles and the sides of the triangle.

---

Given that the circles are identical and stacked, and assuming the problem asks for the area of the triangle that circumscribes these three circles:

Assumptions and Understanding:

1. Diameter of Circles: Let $d$ be the diameter of each circle.
2. Radius of Circles: Since the circles are identical, the radius $r$ of each circle is $r = \frac{d}{2}$.
3. Height of Triangle: Since the circles are vertically stacked, the height $h$ of the triangle will be $h = 3d$, as each circle contributes $d$ to the height.
4. Base of Triangle: The base $b$ of the triangle will be the distance across the widest part of the triangle, which is the diameter of the bottom-most circle.

Steps to Solve:

1. Height of Triangle: $h = 3 \times d$

2. Base of Triangle: $b = d$

3. Area of the Triangle: The area $A$ of a triangle is given by the formula: $A = \frac{1}{2} \times \text{base} \times \text{height}$ Substituting the values: $A = \frac{1}{2} \times d \times 3d = \frac{3d^2}{2}$

If $d$ is known, you can substitute the value into the formula to get the exact area.

---

Please confirm if the problem is asking for the area of the triangle as explained, or if there are any other specific details you want to explore.