Prove area of parallelogram palm is double than the area of triangle cab standing on same base and between same parallel lines

The hight and the base line been constant and the diagonal of a paralelogram being the line that shares it in two equal parts, it would be easy to guess that

the infinity sign

step-by-step explanation:

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