I wonder what shape the window is? It has a radius so I expect a circle but you use the word perimeter which is usually reserved for shapes with sides.
So my guess is you are looking for the circumference of a circular window with radius 20. The circumference is given by (pi)d where d is the diameter. The diameter is twice the radius so 40. We use 3.14 to approximate pi.
That makes the circumference (the distance around the circle) = (40)(3.14)=125.6
check the picture below.
so, y = -3 is simply a horizontal line, as you see there, and any perpendicular line to that will be a vertical one, whose slope is undefined.
we can check by simply picking two points off the red line hmmm say (-2,2) and (-2, -2)

Answer:
were is the pic!
Step-by-step explanation:
Answer:
Hello my lil Bunny!
❀ _____.______❀_______._____ ❀
y= 1÷2 cos x-1
Vertical Asymptotes:
for any integer 
Step-by-step explanation: Graph the trigonometric function using the amplitude, period, phase shift, and vertical shift.
Amplitude: None
Period:
Phase Shift: 0 (0to the right)
Vertical Shift: -1
Hope this helped you.
Could you maybe give me breainliest..?
❀ _____.______❀_______._____ ❀
Answer:
x^2-4x-5..................