The area of a triangle can be calculated using the formula:
\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \]
Given:
- Base = 10 cm
- Height = 8 cm
Substitute the given values into the formula:
\[ \text{Area} = \frac{1}{2} \times 10 \text{ cm} \times 8 \text{ cm} \]
Calculate the area:
\[ \text{Area} = 5 \times 8 = 40 \text{ cm}^2 \]
Therefore, the area of the triangle is 40 cm².
The correct option is 40 cm².