Question

calculating the area of a triangle
find the area of the triangle def
area = square units

Explanation:

Step1: Identify base and height

Let's assume the base is the horizontal distance between two points. Counting the grid - squares, if we consider the line segment between two appropriate vertices, say the distance between the x - coordinates of two points on the base. Let the base $b$ be the distance from $x=-8$ to $x = 8$, so $b = 16$. The height $h$ is the perpendicular distance from the third vertex to the line containing the base. Counting the grid - squares, $h = 8$.

Step2: Apply area formula

The formula for the area of a triangle is $A=\frac{1}{2}bh$. Substitute $b = 16$ and $h = 8$ into the formula: $A=\frac{1}{2}\times16\times8$.
$A = 64$

Answer:

64