find the area of the triangle. $a = \\square\\text{ in}^2$

$find the area of the triangle. $a = \\square\\text{ in}^2$$

find the area of the triangle.
$a = \square\text{ in}^2$

The area of a triangle is given by $A = \frac{1}{2} \times \text{base} \times \text{height}$.

Here, base = 12 in, height = 9 in.
$A = \frac{1}{2} \times 12 \times 9$

First compute $12 \times 9 = 108$, then $\frac{1}{2} \times 108 = 54$.

54 in²