The given image shows a right triangle $\triangle ABC$ with:

• $BC = 4.5$ (height)
• $CA = 4$ (base)
• $AB$ (hypotenuse) is not required for area calculation.

The area $S$ of a right triangle is given by:

$S = \frac{1}{2} \times \text{base} \times \text{height}$

$S = \frac{1}{2} \times 4 \times 4.5$

$S = \frac{1}{2} \times 18 = 9$

Thus, the area of the triangle is 9 square units.

Would you like a step-by-step breakdown or have any questions?

Related Questions:

1. How do you find the hypotenuse using the Pythagorean theorem?
2. What is the perimeter of this triangle?
3. How do you calculate the area of a right triangle with different given parameters?
4. What are the properties of a right triangle?
5. Can the same formula be used for non-right triangles?

Tip: Always check the given values to ensure you are using the correct base and height for area calculations.