Question

student is painting a brick for his teacher to use as a doorstop in the classroom. he is only painting the front of the brick. the vertices of the face are (-4, 2), (-4, -11), (4, 2), and (4, -11). what is the area, in square inches, of the painted face of the brick? o 42 in² o 82 in² o 104 in² o 128 in²

Explanation:

Step1: Encontrar la base

La distancia entre $x = - 4$ y $x = 4$ es $4-(-4)=8$.

Step2: Encontrar la altura

La distancia entre $y = 2$ y $y=-11$ es $2 - (-11)=13$.

Step3: Calcular el área

El área de un rectángulo es $A = base\times altura$, entonces $A=8\times13 = 104$.

Answer:

$104$ in²