There are 8 squares. if 25% of the squares are red and the rest of them are blue how many squares are red

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

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"