GED Math Practice Test

To find the area of a triangle, you can use the formula:

\[

\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}

\]

In this case, the base of the triangle is 10 cm, and the height is 5 cm. So, substituting these values into the formula gives:

\[

\text{Area} = \frac{1}{2} \times 10 \, \text{cm} \times 5 \, \text{cm}

\]

Calculating that:

\[

\text{Area} = \frac{1}{2} \times 50 \, \text{cm}^2 = 25 \, \text{cm}^2

\]

Therefore, the area of the triangle is 25 cm², which matches the first choice. This shows a clear understanding of how to apply the area formula for triangles, using both the base and height measurements correctly.