Answer
The area of the triangle is $10\text{ sq}\text{.units}$.
Work Step by Step
Consider the given points, $\left( -3,-2 \right),\left( 2,-2 \right),\left( 1,2 \right)$ and sketch the graph.
By observing the graph, we see that the base of the triangle is $2-\left( -3 \right)=5\text{ unit}$ and the height is $2-\left( -2 \right)=4\text{ unit}$.
Therefore, the area of the triangle is
$\begin{align}
& A=\frac{1}{2}bh \\
& =\frac{1}{2}\left( 5 \right)\left( 4 \right) \\
& =10
\end{align}$
Hence, the area of the triangle is $10\text{ sq}\text{.units}$.
