What are the angle measures of -1/2 + √ 3/2​

what i would say the best answer is a. 40.5

the answer is ! ?

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