To solve this, we simply have to get the length and the
width. Based from the graph, we can see that the length is connected by 2
points (-12, 2) and (6, 2) or (-20, -3) and (-2, -3). The height between the
two lengths is 5 which can be counted manually.
We use the distance formula to calculate the length from
either pair of points.
length^2 = [(-12 – 6)^2 + (2 – 2)^2]
length = 18
Therefore the area is:
Area = length * height
Area = 18 * 5
Area = 90
