scale drawing for a backyard is shown below. In the drawing, 3 cm represents 4 cm. Assuming the patio is rectangular, find the area of the real patio.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c