Question

12m, 4.5m, area:

Explanation:

Step1: Identify the formula for the area of a triangle

The formula for the area of a triangle is \( A=\frac{1}{2}\times base\times height \). Here, the base is \( 4.5m \) and the height is \( 12m \).

Step2: Substitute the values into the formula

Substitute \( base = 4.5 \) and \( height = 12 \) into the formula: \( A=\frac{1}{2}\times4.5\times12 \).
First, calculate \( 4.5\times12 = 54 \). Then, calculate \( \frac{1}{2}\times54 = 27 \).

Answer:

The area of the triangle is \( 27m^{2} \).