The diagram shows 3 identical circles inside a rectangle. Each circle touches the other two circles and the sides of a rectangle,
as shown in the diagram.
The radius of each circle is 2 mm.
Work out the exact area of the rectangle.
Give your answer in the form a3 + b
where a and b are integers.​

how am i supposed to answer

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