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The problem in the image asks you to find the area of a triangle given that the base \( b \) is 2.5 cm and the height \( h \) is \( \frac{1}{2} \).

### Solution:
The area \( A \) of a triangle is calculated using the formula:
\[
A = \frac{1}{2} \times \text{base} \times \text{height}
\]

Substitute the given values:
\[
A = \frac{1}{2} \times 2.5 \times \frac{1}{2}
\]

### Calculation:
1. First, calculate \( 2.5 \times \frac{1}{2} = 1.25 \).
2. Then, calculate \( \frac{1}{2} \times 1.25 = 0.625 \).

So, the area of the triangle is \( 0.625 \, \text{cm}^2 \).

Would you like more details or have any other questions?

### Follow-up Questions:
1. How would the area change if the height was doubled?
2. What would be the area if the base was 5 cm instead of 2.5 cm?
3. Can you calculate the area if both the base and height were doubled?
4. How would you express the area of the triangle algebraically if both the base and height are variables?
5. What is the significance of the factor \( \frac{1}{2} \) in the area formula of a triangle?

**Tip:** Always make sure that your base and height are perpendicular to each other when calculating the area of a triangle.

The area of a triangle with base 2.5 cm and height 1/2 cm. Find the area when 2.5 cm is multiplied with 1/2 cm.

Learn how to calculate the area of a triangle where the base is 2.5 cm and the height is 1/2 cm. This problem covers essential geometric concepts and is suitable for students in Grades 5-7.

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